0.90x+0.40(100-x)=170

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Solution for 0.90x+0.40(100-x)=170 equation:


Simplifying
0.90x + 0.40(100 + -1x) = 170
0.90x + (100 * 0.40 + -1x * 0.40) = 170
0.90x + (40 + -0.4x) = 170

Reorder the terms:
40 + 0.90x + -0.4x = 170

Combine like terms: 0.90x + -0.4x = 0.5x
40 + 0.5x = 170

Solving
40 + 0.5x = 170

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + 0.5x = 170 + -40

Combine like terms: 40 + -40 = 0
0 + 0.5x = 170 + -40
0.5x = 170 + -40

Combine like terms: 170 + -40 = 130
0.5x = 130

Divide each side by '0.5'.
x = 260

Simplifying
x = 260

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