2(3x+6)-3(7x-3)=81

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Solution for 2(3x+6)-3(7x-3)=81 equation:


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

Reorder the terms:
2(6 + 3x) + -3(7x + -3) = 81
(6 * 2 + 3x * 2) + -3(7x + -3) = 81
(12 + 6x) + -3(7x + -3) = 81

Reorder the terms:
12 + 6x + -3(-3 + 7x) = 81
12 + 6x + (-3 * -3 + 7x * -3) = 81
12 + 6x + (9 + -21x) = 81

Reorder the terms:
12 + 9 + 6x + -21x = 81

Combine like terms: 12 + 9 = 21
21 + 6x + -21x = 81

Combine like terms: 6x + -21x = -15x
21 + -15x = 81

Solving
21 + -15x = 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 + -15x = 81 + -21

Combine like terms: 21 + -21 = 0
0 + -15x = 81 + -21
-15x = 81 + -21

Combine like terms: 81 + -21 = 60
-15x = 60

Divide each side by '-15'.
x = -4

Simplifying
x = -4

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