3(x-1)+20=-7

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Solution for 3(x-1)+20=-7 equation:


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

Reorder the terms:
3(-1 + x) + 20 = -7
(-1 * 3 + x * 3) + 20 = -7
(-3 + 3x) + 20 = -7

Reorder the terms:
-3 + 20 + 3x = -7

Combine like terms: -3 + 20 = 17
17 + 3x = -7

Solving
17 + 3x = -7

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + 3x = -7 + -17

Combine like terms: 17 + -17 = 0
0 + 3x = -7 + -17
3x = -7 + -17

Combine like terms: -7 + -17 = -24
3x = -24

Divide each side by '3'.
x = -8

Simplifying
x = -8

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