3(x-7)+2=20

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Solution for 3(x-7)+2=20 equation: 


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

Reorder the terms:
3(-7 + x) + 2 = 20
(-7 * 3 + x * 3) + 2 = 20
(-21 + 3x) + 2 = 20

Reorder the terms:
-21 + 2 + 3x = 20

Combine like terms: -21 + 2 = -19
-19 + 3x = 20

Solving
-19 + 3x = 20

Solving for variable 'x'.

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

Add '19' to each side of the equation.
-19 + 19 + 3x = 20 + 19

Combine like terms: -19 + 19 = 0
0 + 3x = 20 + 19
3x = 20 + 19

Combine like terms: 20 + 19 = 39
3x = 39

Divide each side by '3'.
x = 13

Simplifying
x = 13

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