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

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Solution for 7=(x-1)+4(x-1) equation:


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

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

Remove parenthesis around (-1 + x)
7 = -1 + x + 4(x + -1)

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

Reorder the terms:
7 = -1 + -4 + x + 4x

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

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

Solving
7 = -5 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
7 + -5x = -5 + 5x + -5x

Combine like terms: 5x + -5x = 0
7 + -5x = -5 + 0
7 + -5x = -5

Add '-7' to each side of the equation.
7 + -7 + -5x = -5 + -7

Combine like terms: 7 + -7 = 0
0 + -5x = -5 + -7
-5x = -5 + -7

Combine like terms: -5 + -7 = -12
-5x = -12

Divide each side by '-5'.
x = 2.4

Simplifying
x = 2.4

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