(3x-1)+70=90

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Solution for (3x-1)+70=90 equation:


Simplifying
(3x + -1) + 70 = 90

Reorder the terms:
(-1 + 3x) + 70 = 90

Remove parenthesis around (-1 + 3x)
-1 + 3x + 70 = 90

Reorder the terms:
-1 + 70 + 3x = 90

Combine like terms: -1 + 70 = 69
69 + 3x = 90

Solving
69 + 3x = 90

Solving for variable 'x'.

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

Add '-69' to each side of the equation.
69 + -69 + 3x = 90 + -69

Combine like terms: 69 + -69 = 0
0 + 3x = 90 + -69
3x = 90 + -69

Combine like terms: 90 + -69 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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