Question

question 5 (1 point)
solve for the unknown:
y+7=16
question 6 (1 point)
solve for the unknown:
a-2=10

Explanation:

Question 5

Step1: Isolate the variable y

To solve for \( y \) in the equation \( y + 7 = 16 \), we need to subtract 7 from both sides of the equation. This is based on the addition - subtraction property of equality, which states that if we perform the same operation on both sides of an equation, the equality still holds.

$$ y+7 - 7=16 - 7 $$

Step2: Simplify both sides

Simplifying the left - hand side, \( y + 7-7=y \). Simplifying the right - hand side, \( 16 - 7 = 9 \). So we get \( y=9 \).

Step1: Isolate the variable a

To solve for \( a \) in the equation \( a - 2=10 \), we need to add 2 to both sides of the equation. This is based on the addition - subtraction property of equality.

$$ a-2 + 2=10 + 2 $$

Step2: Simplify both sides

Simplifying the left - hand side, \( a-2 + 2=a \). Simplifying the right - hand side, \( 10+2 = 12 \). So we get \( a = 12 \).

Answer:

\( y = 9 \)

Question 6