3.9=2.5(g-4)+1.5(g+5)

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Solution for 3.9=2.5(g-4)+1.5(g+5) equation:


Simplifying
3.9 = 2.5(g + -4) + 1.5(g + 5)

Reorder the terms:
3.9 = 2.5(-4 + g) + 1.5(g + 5)
3.9 = (-4 * 2.5 + g * 2.5) + 1.5(g + 5)
3.9 = (-10 + 2.5g) + 1.5(g + 5)

Reorder the terms:
3.9 = -10 + 2.5g + 1.5(5 + g)
3.9 = -10 + 2.5g + (5 * 1.5 + g * 1.5)
3.9 = -10 + 2.5g + (7.5 + 1.5g)

Reorder the terms:
3.9 = -10 + 7.5 + 2.5g + 1.5g

Combine like terms: -10 + 7.5 = -2.5
3.9 = -2.5 + 2.5g + 1.5g

Combine like terms: 2.5g + 1.5g = 4g
3.9 = -2.5 + 4g

Solving
3.9 = -2.5 + 4g

Solving for variable 'g'.

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

Add '-4g' to each side of the equation.
3.9 + -4g = -2.5 + 4g + -4g

Combine like terms: 4g + -4g = 0
3.9 + -4g = -2.5 + 0
3.9 + -4g = -2.5

Add '-3.9' to each side of the equation.
3.9 + -3.9 + -4g = -2.5 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + -4g = -2.5 + -3.9
-4g = -2.5 + -3.9

Combine like terms: -2.5 + -3.9 = -6.4
-4g = -6.4

Divide each side by '-4'.
g = 1.6

Simplifying
g = 1.6

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