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3 votes
Solve for x.
9(x - 6) = 8(x + 6)

2 Answers

5 votes

Answer:

x = 102

Explanation:

9(x + -6) = 8(x + 6)

Reorder the terms:

9(-6 + x) = 8(x + 6)

(-6 * 9 + x * 9) = 8(x + 6)

(-54 + 9x) = 8(x + 6)

Reorder the terms:

-54 + 9x = 8(6 + x)

-54 + 9x = (6 * 8 + x * 8)

-54 + 9x = (48 + 8x)

Solving

-54 + 9x = 48 + 8x

Add '-8x' to each side of the equation.

-54 + 9x + -8x = 48 + 8x + -8x

Combine like terms: 9x + -8x = 1x

-54 + 1x = 48 + 8x + -8x

Combine like terms: 8x + -8x = 0

-54 + 1x = 48 + 0

-54 + 1x = 48

Add '54' to each side of the equation.

-54 + 54 + 1x = 48 + 54

Combine like terms: -54 + 54 = 0

0 + 1x = 48 + 54

1x = 48 + 54

Combine like terms: 48 + 54 = 102

1x = 102

Divide each side by '1'.

x = 102

User Josh Knauer
by
7.9k points
2 votes

Answer:

x=102

Explanation:

9x-54=8x+48

subtract 8x from both sides

x-54=48

add 54 to both sides

x=102

User Deddy
by
7.4k points

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