15=4(4x-4)-(x-7)

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Solution for 15=4(4x-4)-(x-7) equation:


Simplifying
15 = 4(4x + -4) + -1(x + -7)

Reorder the terms:
15 = 4(-4 + 4x) + -1(x + -7)
15 = (-4 * 4 + 4x * 4) + -1(x + -7)
15 = (-16 + 16x) + -1(x + -7)

Reorder the terms:
15 = -16 + 16x + -1(-7 + x)
15 = -16 + 16x + (-7 * -1 + x * -1)
15 = -16 + 16x + (7 + -1x)

Reorder the terms:
15 = -16 + 7 + 16x + -1x

Combine like terms: -16 + 7 = -9
15 = -9 + 16x + -1x

Combine like terms: 16x + -1x = 15x
15 = -9 + 15x

Solving
15 = -9 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
15 + -15x = -9 + 15x + -15x

Combine like terms: 15x + -15x = 0
15 + -15x = -9 + 0
15 + -15x = -9

Add '-15' to each side of the equation.
15 + -15 + -15x = -9 + -15

Combine like terms: 15 + -15 = 0
0 + -15x = -9 + -15
-15x = -9 + -15

Combine like terms: -9 + -15 = -24
-15x = -24

Divide each side by '-15'.
x = 1.6

Simplifying
x = 1.6

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