4(1-x)-(3x+8)=15

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Solution for 4(1-x)-(3x+8)=15 equation:


Simplifying
4(1 + -1x) + -1(3x + 8) = 15
(1 * 4 + -1x * 4) + -1(3x + 8) = 15
(4 + -4x) + -1(3x + 8) = 15

Reorder the terms:
4 + -4x + -1(8 + 3x) = 15
4 + -4x + (8 * -1 + 3x * -1) = 15
4 + -4x + (-8 + -3x) = 15

Reorder the terms:
4 + -8 + -4x + -3x = 15

Combine like terms: 4 + -8 = -4
-4 + -4x + -3x = 15

Combine like terms: -4x + -3x = -7x
-4 + -7x = 15

Solving
-4 + -7x = 15

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + -7x = 15 + 4

Combine like terms: -4 + 4 = 0
0 + -7x = 15 + 4
-7x = 15 + 4

Combine like terms: 15 + 4 = 19
-7x = 19

Divide each side by '-7'.
x = -2.714285714

Simplifying
x = -2.714285714

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