7(3x-4)-7=70

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Solution for 7(3x-4)-7=70 equation:


Simplifying
7(3x + -4) + -7 = 70

Reorder the terms:
7(-4 + 3x) + -7 = 70
(-4 * 7 + 3x * 7) + -7 = 70
(-28 + 21x) + -7 = 70

Reorder the terms:
-28 + -7 + 21x = 70

Combine like terms: -28 + -7 = -35
-35 + 21x = 70

Solving
-35 + 21x = 70

Solving for variable 'x'.

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

Add '35' to each side of the equation.
-35 + 35 + 21x = 70 + 35

Combine like terms: -35 + 35 = 0
0 + 21x = 70 + 35
21x = 70 + 35

Combine like terms: 70 + 35 = 105
21x = 105

Divide each side by '21'.
x = 5

Simplifying
x = 5

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