3x+4(7.5+2.5x)=-9

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Solution for 3x+4(7.5+2.5x)=-9 equation:


Simplifying
3x + 4(7.5 + 2.5x) = -9
3x + (7.5 * 4 + 2.5x * 4) = -9
3x + (30 + 10x) = -9

Reorder the terms:
30 + 3x + 10x = -9

Combine like terms: 3x + 10x = 13x
30 + 13x = -9

Solving
30 + 13x = -9

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 13x = -9 + -30

Combine like terms: 30 + -30 = 0
0 + 13x = -9 + -30
13x = -9 + -30

Combine like terms: -9 + -30 = -39
13x = -39

Divide each side by '13'.
x = -3

Simplifying
x = -3

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