7(5x-12)=21

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Solution for 7(5x-12)=21 equation:


Simplifying
7(5x + -12) = 21

Reorder the terms:
7(-12 + 5x) = 21
(-12 * 7 + 5x * 7) = 21
(-84 + 35x) = 21

Solving
-84 + 35x = 21

Solving for variable 'x'.

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

Add '84' to each side of the equation.
-84 + 84 + 35x = 21 + 84

Combine like terms: -84 + 84 = 0
0 + 35x = 21 + 84
35x = 21 + 84

Combine like terms: 21 + 84 = 105
35x = 105

Divide each side by '35'.
x = 3

Simplifying
x = 3

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