.25(12x+36)-0.4(25x-30)=50

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Solution for .25(12x+36)-0.4(25x-30)=50 equation:


Simplifying
0.25(12x + 36) + -0.4(25x + -30) = 50

Reorder the terms:
0.25(36 + 12x) + -0.4(25x + -30) = 50
(36 * 0.25 + 12x * 0.25) + -0.4(25x + -30) = 50
(9 + 3x) + -0.4(25x + -30) = 50

Reorder the terms:
9 + 3x + -0.4(-30 + 25x) = 50
9 + 3x + (-30 * -0.4 + 25x * -0.4) = 50
9 + 3x + (12 + -10x) = 50

Reorder the terms:
9 + 12 + 3x + -10x = 50

Combine like terms: 9 + 12 = 21
21 + 3x + -10x = 50

Combine like terms: 3x + -10x = -7x
21 + -7x = 50

Solving
21 + -7x = 50

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 + -7x = 50 + -21

Combine like terms: 21 + -21 = 0
0 + -7x = 50 + -21
-7x = 50 + -21

Combine like terms: 50 + -21 = 29
-7x = 29

Divide each side by '-7'.
x = -4.142857143

Simplifying
x = -4.142857143

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