7(x-3)=8(x-7)

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Solution for 7(x-3)=8(x-7) equation:


Simplifying
7(x + -3) = 8(x + -7)

Reorder the terms:
7(-3 + x) = 8(x + -7)
(-3 * 7 + x * 7) = 8(x + -7)
(-21 + 7x) = 8(x + -7)

Reorder the terms:
-21 + 7x = 8(-7 + x)
-21 + 7x = (-7 * 8 + x * 8)
-21 + 7x = (-56 + 8x)

Solving
-21 + 7x = -56 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-21 + 7x + -8x = -56 + 8x + -8x

Combine like terms: 7x + -8x = -1x
-21 + -1x = -56 + 8x + -8x

Combine like terms: 8x + -8x = 0
-21 + -1x = -56 + 0
-21 + -1x = -56

Add '21' to each side of the equation.
-21 + 21 + -1x = -56 + 21

Combine like terms: -21 + 21 = 0
0 + -1x = -56 + 21
-1x = -56 + 21

Combine like terms: -56 + 21 = -35
-1x = -35

Divide each side by '-1'.
x = 35

Simplifying
x = 35

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