7x+2(4x-21)=108

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Solution for 7x+2(4x-21)=108 equation:


Simplifying
7x + 2(4x + -21) = 108

Reorder the terms:
7x + 2(-21 + 4x) = 108
7x + (-21 * 2 + 4x * 2) = 108
7x + (-42 + 8x) = 108

Reorder the terms:
-42 + 7x + 8x = 108

Combine like terms: 7x + 8x = 15x
-42 + 15x = 108

Solving
-42 + 15x = 108

Solving for variable 'x'.

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

Add '42' to each side of the equation.
-42 + 42 + 15x = 108 + 42

Combine like terms: -42 + 42 = 0
0 + 15x = 108 + 42
15x = 108 + 42

Combine like terms: 108 + 42 = 150
15x = 150

Divide each side by '15'.
x = 10

Simplifying
x = 10

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