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

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


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

Reorder the terms:
3(7 + 4x) + -4(12x + -15) = 0
(7 * 3 + 4x * 3) + -4(12x + -15) = 0
(21 + 12x) + -4(12x + -15) = 0

Reorder the terms:
21 + 12x + -4(-15 + 12x) = 0
21 + 12x + (-15 * -4 + 12x * -4) = 0
21 + 12x + (60 + -48x) = 0

Reorder the terms:
21 + 60 + 12x + -48x = 0

Combine like terms: 21 + 60 = 81
81 + 12x + -48x = 0

Combine like terms: 12x + -48x = -36x
81 + -36x = 0

Solving
81 + -36x = 0

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + -36x = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -36x = 0 + -81
-36x = 0 + -81

Combine like terms: 0 + -81 = -81
-36x = -81

Divide each side by '-36'.
x = 2.25

Simplifying
x = 2.25

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