3(7-2x)-4x=81

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Solution for 3(7-2x)-4x=81 equation:


Simplifying
3(7 + -2x) + -4x = 81
(7 * 3 + -2x * 3) + -4x = 81
(21 + -6x) + -4x = 81

Combine like terms: -6x + -4x = -10x
21 + -10x = 81

Solving
21 + -10x = 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 + -10x = 81 + -21

Combine like terms: 21 + -21 = 0
0 + -10x = 81 + -21
-10x = 81 + -21

Combine like terms: 81 + -21 = 60
-10x = 60

Divide each side by '-10'.
x = -6

Simplifying
x = -6

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