20+7x=4(5x+2)-1

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Solution for 20+7x=4(5x+2)-1 equation: 


Simplifying
20 + 7x = 4(5x + 2) + -1

Reorder the terms:
20 + 7x = 4(2 + 5x) + -1
20 + 7x = (2 * 4 + 5x * 4) + -1
20 + 7x = (8 + 20x) + -1

Reorder the terms:
20 + 7x = 8 + -1 + 20x

Combine like terms: 8 + -1 = 7
20 + 7x = 7 + 20x

Solving
20 + 7x = 7 + 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.
20 + 7x + -20x = 7 + 20x + -20x

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

Combine like terms: 20x + -20x = 0
20 + -13x = 7 + 0
20 + -13x = 7

Add '-20' to each side of the equation.
20 + -20 + -13x = 7 + -20

Combine like terms: 20 + -20 = 0
0 + -13x = 7 + -20
-13x = 7 + -20

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

Divide each side by '-13'.
x = 1

Simplifying
x = 1

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