5.1x+4(2-10x)=15-31.9x

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Solution for 5.1x+4(2-10x)=15-31.9x equation:


Simplifying
5.1x + 4(2 + -10x) = 15 + -31.9x
5.1x + (2 * 4 + -10x * 4) = 15 + -31.9x
5.1x + (8 + -40x) = 15 + -31.9x

Reorder the terms:
8 + 5.1x + -40x = 15 + -31.9x

Combine like terms: 5.1x + -40x = -34.9x
8 + -34.9x = 15 + -31.9x

Solving
8 + -34.9x = 15 + -31.9x

Solving for variable 'x'.

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

Add '31.9x' to each side of the equation.
8 + -34.9x + 31.9x = 15 + -31.9x + 31.9x

Combine like terms: -34.9x + 31.9x = -3x
8 + -3x = 15 + -31.9x + 31.9x

Combine like terms: -31.9x + 31.9x = 0.0
8 + -3x = 15 + 0.0
8 + -3x = 15

Add '-8' to each side of the equation.
8 + -8 + -3x = 15 + -8

Combine like terms: 8 + -8 = 0
0 + -3x = 15 + -8
-3x = 15 + -8

Combine like terms: 15 + -8 = 7
-3x = 7

Divide each side by '-3'.
x = -2.333333333

Simplifying
x = -2.333333333

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