3(x-7)-8=20

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Solution for 3(x-7)-8=20 equation:


Simplifying
3(x + -7) + -8 = 20

Reorder the terms:
3(-7 + x) + -8 = 20
(-7 * 3 + x * 3) + -8 = 20
(-21 + 3x) + -8 = 20

Reorder the terms:
-21 + -8 + 3x = 20

Combine like terms: -21 + -8 = -29
-29 + 3x = 20

Solving
-29 + 3x = 20

Solving for variable 'x'.

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

Add '29' to each side of the equation.
-29 + 29 + 3x = 20 + 29

Combine like terms: -29 + 29 = 0
0 + 3x = 20 + 29
3x = 20 + 29

Combine like terms: 20 + 29 = 49
3x = 49

Divide each side by '3'.
x = 16.33333333

Simplifying
x = 16.33333333

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