.25(x-4)+.2(x+5)=x-9

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Solution for .25(x-4)+.2(x+5)=x-9 equation:


Simplifying
0.25(x + -4) + 0.2(x + 5) = x + -9

Reorder the terms:
0.25(-4 + x) + 0.2(x + 5) = x + -9
(-4 * 0.25 + x * 0.25) + 0.2(x + 5) = x + -9
(-1 + 0.25x) + 0.2(x + 5) = x + -9

Reorder the terms:
-1 + 0.25x + 0.2(5 + x) = x + -9
-1 + 0.25x + (5 * 0.2 + x * 0.2) = x + -9
-1 + 0.25x + (1 + 0.2x) = x + -9

Reorder the terms:
-1 + 1 + 0.25x + 0.2x = x + -9

Combine like terms: -1 + 1 = 0
0 + 0.25x + 0.2x = x + -9
0.25x + 0.2x = x + -9

Combine like terms: 0.25x + 0.2x = 0.45x
0.45x = x + -9

Reorder the terms:
0.45x = -9 + x

Solving
0.45x = -9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
0.45x + -1x = -9 + x + -1x

Combine like terms: 0.45x + -1x = -0.55x
-0.55x = -9 + x + -1x

Combine like terms: x + -1x = 0
-0.55x = -9 + 0
-0.55x = -9

Divide each side by '-0.55'.
x = 16.36363636

Simplifying
x = 16.36363636

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