Question

which equations have 6 as a solution?
14 - n = 7 n + 5 = 11 7n = 42 54 ÷ n = 9
select all the equations that have 6 as a solution.
a. n + 5 = 11
b. 7n = 42
c. 14 - n = 7
d. 54 ÷ n = 9

Explanation:

Step1: Check Equation A ($n + 5 = 11$)

Substitute $n = 6$: $6 + 5 = 11$ → $11 = 11$, true.

Step2: Check Equation B ($7n = 42$)

Substitute $n = 6$: $7\times6 = 42$ → $42 = 42$, true.

Step3: Check Equation C ($14 - n = 7$)

Substitute $n = 6$: $14 - 6 = 7$ → $8 = 7$, false.

Step4: Check Equation D ($54\div n = 9$)

Substitute $n = 6$: $54\div6 = 9$ → $9 = 9$, true.

Answer:

A. $n + 5 = 11$, B. $7n = 42$, D. $54 \div n = 9$