55.20=2.50(3)-5.30x

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Solution for 55.20=2.50(3)-5.30x equation: 


Simplifying
55.20 = 2.50(3) + -5.30x

Multiply 2.50 * 3
55.20 = 7.5 + -5.30x

Solving
55.20 = 7.5 + -5.30x

Solving for variable 'x'.

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

Add '5.30x' to each side of the equation.
55.20 + 5.30x = 7.5 + -5.30x + 5.30x

Combine like terms: -5.30x + 5.30x = 0.00
55.20 + 5.30x = 7.5 + 0.00
55.20 + 5.30x = 7.5

Add '-55.20' to each side of the equation.
55.20 + -55.20 + 5.30x = 7.5 + -55.20

Combine like terms: 55.20 + -55.20 = 0.00
0.00 + 5.30x = 7.5 + -55.20
5.30x = 7.5 + -55.20

Combine like terms: 7.5 + -55.20 = -47.7
5.30x = -47.7

Divide each side by '5.30'.
x = -9

Simplifying
x = -9

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