What value of a is a solution to this equation? 9a = 63 Choices: (A)a = 7 (B)a = 8

Identify Operation: Identify the operation needed to isolate the variable a. The equation is 9a = 63, which means 9 times some number a equals 63. To find the value of a, we need to perform the inverse operation of multiplication, which is division.Divide by 9: Divide both sides of the equation by 9 to solve for a. To isolate a, we divide both sides of the equation by 9. This gives us a = 63 / 9.Perform Division: Perform the division to find the value of a. Calculating 63 divided by 9 gives us a = 7.Check Solution: Check the solution by substituting the value of a back into the original equation. Substitute a = 7 into the original equation: 9a = 63 becomes 9(7) = 63. Calculating 9 times 7 gives us 63, which matches the right side of the equation.

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What value of $a$ is a solution to this equation? $\newline$ $9a = 63$ $\newline$ Choices: $\newline$ (A) $a = 7$ $\newline$ (B) $a = 8$

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Grade 7

Which x satisfies an equation?

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Q. What value of

a

is a solution to this equation?

\newline

9a = 63

\newline

Choices:

\newline

(A)

a = 7

\newline

(B)

a = 8

Identify Operation: Identify the operation needed to isolate the variable $a$ . The equation is $9a = 63$ , which means $9$ times some number $a$ equals $63$ . To find the value of $a$ , we need to perform the inverse operation of multiplication, which is division.
Divide by $9$ : Divide both sides of the equation by $9$ to solve for $a$ . To isolate $a$ , we divide both sides of the equation by $9$ . This gives us $a = \frac{63}{9}$ .
Perform Division: Perform the division to find the value of $a$ . Calculating $63$ divided by $9$ gives us $a = 7$ .
Check Solution: Check the solution by substituting the value of $a$ back into the original equation. $\newline$ Substitute $a = 7$ into the original equation: $9a = 63$ becomes $9(7) = 63$ . Calculating $9 \times 7$ gives us $63$ , which matches the right side of the equation.