7x+13-1=4(5x+7)

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Solution for 7x+13-1=4(5x+7) equation:


Simplifying
7x + 13 + -1 = 4(5x + 7)

Reorder the terms:
13 + -1 + 7x = 4(5x + 7)

Combine like terms: 13 + -1 = 12
12 + 7x = 4(5x + 7)

Reorder the terms:
12 + 7x = 4(7 + 5x)
12 + 7x = (7 * 4 + 5x * 4)
12 + 7x = (28 + 20x)

Solving
12 + 7x = 28 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
12 + 7x + -20x = 28 + 20x + -20x

Combine like terms: 7x + -20x = -13x
12 + -13x = 28 + 20x + -20x

Combine like terms: 20x + -20x = 0
12 + -13x = 28 + 0
12 + -13x = 28

Add '-12' to each side of the equation.
12 + -12 + -13x = 28 + -12

Combine like terms: 12 + -12 = 0
0 + -13x = 28 + -12
-13x = 28 + -12

Combine like terms: 28 + -12 = 16
-13x = 16

Divide each side by '-13'.
x = -1.230769231

Simplifying
x = -1.230769231

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