1.05x+.30(100-x)=1.25x

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Solution for 1.05x+.30(100-x)=1.25x equation:


Simplifying
1.05x + 0.30(100 + -1x) = 1.25x
1.05x + (100 * 0.30 + -1x * 0.30) = 1.25x
1.05x + (30 + -0.3x) = 1.25x

Reorder the terms:
30 + 1.05x + -0.3x = 1.25x

Combine like terms: 1.05x + -0.3x = 0.75x
30 + 0.75x = 1.25x

Solving
30 + 0.75x = 1.25x

Solving for variable 'x'.

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

Add '-1.25x' to each side of the equation.
30 + 0.75x + -1.25x = 1.25x + -1.25x

Combine like terms: 0.75x + -1.25x = -0.5x
30 + -0.5x = 1.25x + -1.25x

Combine like terms: 1.25x + -1.25x = 0.00
30 + -0.5x = 0.00

Add '-30' to each side of the equation.
30 + -30 + -0.5x = 0.00 + -30

Combine like terms: 30 + -30 = 0
0 + -0.5x = 0.00 + -30
-0.5x = 0.00 + -30

Combine like terms: 0.00 + -30 = -30
-0.5x = -30

Divide each side by '-0.5'.
x = 60

Simplifying
x = 60

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