-3(2.5x+4.2)=2.5x-x+2(4.28)

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Solution for -3(2.5x+4.2)=2.5x-x+2(4.28) equation: 


Simplifying
-3(2.5x + 4.2) = 2.5x + -1x + 2(4.28)

Reorder the terms:
-3(4.2 + 2.5x) = 2.5x + -1x + 2(4.28)
(4.2 * -3 + 2.5x * -3) = 2.5x + -1x + 2(4.28)
(-12.6 + -7.5x) = 2.5x + -1x + 2(4.28)

Multiply 2 * 4.28
-12.6 + -7.5x = 2.5x + -1x + 8.56

Reorder the terms:
-12.6 + -7.5x = 8.56 + 2.5x + -1x

Combine like terms: 2.5x + -1x = 1.5x
-12.6 + -7.5x = 8.56 + 1.5x

Solving
-12.6 + -7.5x = 8.56 + 1.5x

Solving for variable 'x'.

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

Add '-1.5x' to each side of the equation.
-12.6 + -7.5x + -1.5x = 8.56 + 1.5x + -1.5x

Combine like terms: -7.5x + -1.5x = -9x
-12.6 + -9x = 8.56 + 1.5x + -1.5x

Combine like terms: 1.5x + -1.5x = 0.0
-12.6 + -9x = 8.56 + 0.0
-12.6 + -9x = 8.56

Add '12.6' to each side of the equation.
-12.6 + 12.6 + -9x = 8.56 + 12.6

Combine like terms: -12.6 + 12.6 = 0.0
0.0 + -9x = 8.56 + 12.6
-9x = 8.56 + 12.6

Combine like terms: 8.56 + 12.6 = 21.16
-9x = 21.16

Divide each side by '-9'.
x = -2.351111111

Simplifying
x = -2.351111111

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