6x+7(x+3)=86

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Solution for 6x+7(x+3)=86 equation:


Simplifying
6x + 7(x + 3) = 86

Reorder the terms:
6x + 7(3 + x) = 86
6x + (3 * 7 + x * 7) = 86
6x + (21 + 7x) = 86

Reorder the terms:
21 + 6x + 7x = 86

Combine like terms: 6x + 7x = 13x
21 + 13x = 86

Solving
21 + 13x = 86

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 13x = 86 + -21

Combine like terms: 21 + -21 = 0
0 + 13x = 86 + -21
13x = 86 + -21

Combine like terms: 86 + -21 = 65
13x = 65

Divide each side by '13'.
x = 5

Simplifying
x = 5

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