8(x-7)=9(x-7)

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Solution for 8(x-7)=9(x-7) equation:


Simplifying
8(x + -7) = 9(x + -7)

Reorder the terms:
8(-7 + x) = 9(x + -7)
(-7 * 8 + x * 8) = 9(x + -7)
(-56 + 8x) = 9(x + -7)

Reorder the terms:
-56 + 8x = 9(-7 + x)
-56 + 8x = (-7 * 9 + x * 9)
-56 + 8x = (-63 + 9x)

Solving
-56 + 8x = -63 + 9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9x' to each side of the equation.
-56 + 8x + -9x = -63 + 9x + -9x

Combine like terms: 8x + -9x = -1x
-56 + -1x = -63 + 9x + -9x

Combine like terms: 9x + -9x = 0
-56 + -1x = -63 + 0
-56 + -1x = -63

Add '56' to each side of the equation.
-56 + 56 + -1x = -63 + 56

Combine like terms: -56 + 56 = 0
0 + -1x = -63 + 56
-1x = -63 + 56

Combine like terms: -63 + 56 = -7
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7

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