2x+20=7(x-1)

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


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

Reorder the terms:
20 + 2x = 7(x + -1)

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

Solving
20 + 2x = -7 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
20 + 2x + -7x = -7 + 7x + -7x

Combine like terms: 2x + -7x = -5x
20 + -5x = -7 + 7x + -7x

Combine like terms: 7x + -7x = 0
20 + -5x = -7 + 0
20 + -5x = -7

Add '-20' to each side of the equation.
20 + -20 + -5x = -7 + -20

Combine like terms: 20 + -20 = 0
0 + -5x = -7 + -20
-5x = -7 + -20

Combine like terms: -7 + -20 = -27
-5x = -27

Divide each side by '-5'.
x = 5.4

Simplifying
x = 5.4

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