QUESTION IMAGE
Question
for each value of v, determine whether it is a solution to -8 = 2 - 5v.
| v | is it a solution? | |
|---|---|---|
| -4 | ∘ | ∗ |
| 10 | ∘ | ∘ |
| -9 | ∘ | ∘ |
Step1: Understand the equation
We have the equation \(-8 = 2 - 5v\). To check if a value of \(v\) is a solution, we substitute \(v\) into the equation and see if both sides are equal.
Step2: Check \(v = 0\)
Substitute \(v = 0\) into the right - hand side (RHS) of the equation: \(2-5(0)=2 - 0=2\). The left - hand side (LHS) is \(-8\). Since \(-8
eq2\), \(v = 0\) is not a solution.
Step3: Check \(v=- 4\)
Substitute \(v=-4\) into the RHS: \(2-5(-4)=2 + 20 = 22\). The LHS is \(-8\). Since \(-8
eq22\), \(v=-4\) is not a solution.
Step4: Check \(v = 10\)
Substitute \(v = 10\) into the RHS: \(2-5(10)=2-50=-48\). The LHS is \(-8\). Since \(-8
eq - 48\), \(v = 10\) is not a solution.
Step5: Check \(v=-9\)
Substitute \(v=-9\) into the RHS: \(2-5(-9)=2 + 45 = 47\). The LHS is \(-8\). Since \(-8
eq47\), \(v=-9\) is not a solution. Wait, maybe we made a mistake. Wait, let's solve the equation for \(v\) first.
Solve \(-8=2 - 5v\) for \(v\):
Subtract 2 from both sides: \(-8 - 2=2-5v - 2\), so \(-10=-5v\).
Divide both sides by \(-5\): \(v = 2\). Wait, maybe there is a typo in the given \(v\) values? Wait, if we assume that maybe one of the values was mis - written. Wait, let's re - check the substitution for each value:
Wait, if \(v = 2\) (maybe a typo in the original problem's table, maybe \(v = 2\) instead of one of the given values). But according to the given values:
For \(v = 0\): RHS \(=2-0 = 2
eq - 8\) (No)
For \(v=-4\): RHS \(=2-5\times(-4)=2 + 20=22
eq - 8\) (No)
For \(v = 10\): RHS \(=2-5\times10=2 - 50=-48
eq - 8\) (No)
For \(v=-9\): RHS \(=2-5\times(-9)=2 + 45 = 47
eq - 8\) (No)
Wait, maybe the original equation was \(-8=2 + 5v\)? Let's check. If the equation is \(-8=2 + 5v\), then:
Subtract 2: \(-10 = 5v\), \(v=-2\). Still not matching.
Wait, maybe the equation is \(-8=-2-5v\)? Let's check. Then \(-8 + 2=-5v\), \(-6=-5v\), \(v=\frac{6}{5}=1.2\). No.
Wait, perhaps the user made a typo in the equation. But based on the given values, none of the given \(v\) values (0, - 4,10, - 9) are solutions to \(-8 = 2-5v\).
But let's go back to the table. The table has columns "Is it a solution?" with "Yes" and "No" and rows for \(v = 0\), \(v=-4\), \(v = 10\), \(v=-9\).
For \(v = 0\): Substitute into \(2-5v\), we get \(2\), which is not equal to \(-8\), so "No".
For \(v=-4\): Substitute into \(2-5v\), we get \(2-5\times(-4)=2 + 20 = 22
eq - 8\), so "No".
For \(v = 10\): Substitute into \(2-5v\), we get \(2-50=-48
eq - 8\), so "No".
For \(v=-9\): Substitute into \(2-5v\), we get \(2 + 45 = 47
eq - 8\), so "No".
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For \(v = 0\): No
For \(v=-4\): No
For \(v = 10\): No
For \(v=-9\): No