2x-7(x-3)=81

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Solution for 2x-7(x-3)=81 equation:


Simplifying
2x + -7(x + -3) = 81

Reorder the terms:
2x + -7(-3 + x) = 81
2x + (-3 * -7 + x * -7) = 81
2x + (21 + -7x) = 81

Reorder the terms:
21 + 2x + -7x = 81

Combine like terms: 2x + -7x = -5x
21 + -5x = 81

Solving
21 + -5x = 81

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 + -5x = 81 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = 81 + -21
-5x = 81 + -21

Combine like terms: 81 + -21 = 60
-5x = 60

Divide each side by '-5'.
x = -12

Simplifying
x = -12

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