3(4x+12)+7x-15=

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Solution for 3(4x+12)+7x-15= equation:


Simplifying
3(4x + 12) + 7x + -15 = 0

Reorder the terms:
3(12 + 4x) + 7x + -15 = 0
(12 * 3 + 4x * 3) + 7x + -15 = 0
(36 + 12x) + 7x + -15 = 0

Reorder the terms:
36 + -15 + 12x + 7x = 0

Combine like terms: 36 + -15 = 21
21 + 12x + 7x = 0

Combine like terms: 12x + 7x = 19x
21 + 19x = 0

Solving
21 + 19x = 0

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 + 19x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 19x = 0 + -21
19x = 0 + -21

Combine like terms: 0 + -21 = -21
19x = -21

Divide each side by '19'.
x = -1.105263158

Simplifying
x = -1.105263158

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