.5(x+15)+.4(x+25)=40

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Solution for .5(x+15)+.4(x+25)=40 equation: 


Simplifying
0.5(x + 15) + 0.4(x + 25) = 40

Reorder the terms:
0.5(15 + x) + 0.4(x + 25) = 40
(15 * 0.5 + x * 0.5) + 0.4(x + 25) = 40
(7.5 + 0.5x) + 0.4(x + 25) = 40

Reorder the terms:
7.5 + 0.5x + 0.4(25 + x) = 40
7.5 + 0.5x + (25 * 0.4 + x * 0.4) = 40
7.5 + 0.5x + (10 + 0.4x) = 40

Reorder the terms:
7.5 + 10 + 0.5x + 0.4x = 40

Combine like terms: 7.5 + 10 = 17.5
17.5 + 0.5x + 0.4x = 40

Combine like terms: 0.5x + 0.4x = 0.9x
17.5 + 0.9x = 40

Solving
17.5 + 0.9x = 40

Solving for variable 'x'.

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

Add '-17.5' to each side of the equation.
17.5 + -17.5 + 0.9x = 40 + -17.5

Combine like terms: 17.5 + -17.5 = 0.0
0.0 + 0.9x = 40 + -17.5
0.9x = 40 + -17.5

Combine like terms: 40 + -17.5 = 22.5
0.9x = 22.5

Divide each side by '0.9'.
x = 25

Simplifying
x = 25

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