3(2.50+5.30)-3(5.30g)=55.20

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


Simplifying
3(2.50 + 5.30) + -3(5.30g) = 55.20

Combine like terms: 2.50 + 5.30 = 7.8
3(7.8) + -3(5.30g) = 55.20

Multiply 3 * 7.8
23.4 + -3(5.30g) = 55.20

Remove parenthesis around (5.30g)
23.4 + -3 * 5.30g = 55.20

Multiply -3 * 5.30
23.4 + -15.9g = 55.20

Solving
23.4 + -15.9g = 55.20

Solving for variable 'g'.

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

Add '-23.4' to each side of the equation.
23.4 + -23.4 + -15.9g = 55.20 + -23.4

Combine like terms: 23.4 + -23.4 = 0.0
0.0 + -15.9g = 55.20 + -23.4
-15.9g = 55.20 + -23.4

Combine like terms: 55.20 + -23.4 = 31.8
-15.9g = 31.8

Divide each side by '-15.9'.
g = -2

Simplifying
g = -2

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