2.8x+8.7=1.5x+20.4

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Solution for 2.8x+8.7=1.5x+20.4 equation: 


Simplifying
2.8x + 8.7 = 1.5x + 20.4

Reorder the terms:
8.7 + 2.8x = 1.5x + 20.4

Reorder the terms:
8.7 + 2.8x = 20.4 + 1.5x

Solving
8.7 + 2.8x = 20.4 + 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.
8.7 + 2.8x + -1.5x = 20.4 + 1.5x + -1.5x

Combine like terms: 2.8x + -1.5x = 1.3x
8.7 + 1.3x = 20.4 + 1.5x + -1.5x

Combine like terms: 1.5x + -1.5x = 0.0
8.7 + 1.3x = 20.4 + 0.0
8.7 + 1.3x = 20.4

Add '-8.7' to each side of the equation.
8.7 + -8.7 + 1.3x = 20.4 + -8.7

Combine like terms: 8.7 + -8.7 = 0.0
0.0 + 1.3x = 20.4 + -8.7
1.3x = 20.4 + -8.7

Combine like terms: 20.4 + -8.7 = 11.7
1.3x = 11.7

Divide each side by '1.3'.
x = 9

Simplifying
x = 9

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