7=5(x-4)-(x-7)

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Solution for 7=5(x-4)-(x-7) equation:


Simplifying
7 = 5(x + -4) + -1(x + -7)

Reorder the terms:
7 = 5(-4 + x) + -1(x + -7)
7 = (-4 * 5 + x * 5) + -1(x + -7)
7 = (-20 + 5x) + -1(x + -7)

Reorder the terms:
7 = -20 + 5x + -1(-7 + x)
7 = -20 + 5x + (-7 * -1 + x * -1)
7 = -20 + 5x + (7 + -1x)

Reorder the terms:
7 = -20 + 7 + 5x + -1x

Combine like terms: -20 + 7 = -13
7 = -13 + 5x + -1x

Combine like terms: 5x + -1x = 4x
7 = -13 + 4x

Solving
7 = -13 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
7 + -4x = -13 + 4x + -4x

Combine like terms: 4x + -4x = 0
7 + -4x = -13 + 0
7 + -4x = -13

Add '-7' to each side of the equation.
7 + -7 + -4x = -13 + -7

Combine like terms: 7 + -7 = 0
0 + -4x = -13 + -7
-4x = -13 + -7

Combine like terms: -13 + -7 = -20
-4x = -20

Divide each side by '-4'.
x = 5

Simplifying
x = 5

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