-3[2.5x+4.2]=2.7x-x+2[4.28]

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Solution for -3[2.5x+4.2]=2.7x-x+2[4.28] equation: 


Simplifying
-3[2.5x + 4.2] = 2.7x + -1x + 2[4.28]

Reorder the terms:
-3[4.2 + 2.5x] = 2.7x + -1x + 2[4.28]
[4.2 * -3 + 2.5x * -3] = 2.7x + -1x + 2[4.28]
[-12.6 + -7.5x] = 2.7x + -1x + 2[4.28]

Multiply 2 * 4.28
-12.6 + -7.5x = 2.7x + -1x + 8.56

Reorder the terms:
-12.6 + -7.5x = 8.56 + 2.7x + -1x

Combine like terms: 2.7x + -1x = 1.7x
-12.6 + -7.5x = 8.56 + 1.7x

Solving
-12.6 + -7.5x = 8.56 + 1.7x

Solving for variable 'x'.

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

Add '-1.7x' to each side of the equation.
-12.6 + -7.5x + -1.7x = 8.56 + 1.7x + -1.7x

Combine like terms: -7.5x + -1.7x = -9.2x
-12.6 + -9.2x = 8.56 + 1.7x + -1.7x

Combine like terms: 1.7x + -1.7x = 0.0
-12.6 + -9.2x = 8.56 + 0.0
-12.6 + -9.2x = 8.56

Add '12.6' to each side of the equation.
-12.6 + 12.6 + -9.2x = 8.56 + 12.6

Combine like terms: -12.6 + 12.6 = 0.0
0.0 + -9.2x = 8.56 + 12.6
-9.2x = 8.56 + 12.6

Combine like terms: 8.56 + 12.6 = 21.16
-9.2x = 21.16

Divide each side by '-9.2'.
x = -2.3

Simplifying
x = -2.3

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