0.3(x+100)+0.7x=55

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Solution for 0.3(x+100)+0.7x=55 equation: 


Simplifying
0.3(x + 100) + 0.7x = 55

Reorder the terms:
0.3(100 + x) + 0.7x = 55
(100 * 0.3 + x * 0.3) + 0.7x = 55
(30 + 0.3x) + 0.7x = 55

Combine like terms: 0.3x + 0.7x = 1x
30 + 1x = 55

Solving
30 + 1x = 55

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 + 1x = 55 + -30

Combine like terms: 30 + -30 = 0
0 + 1x = 55 + -30
1x = 55 + -30

Combine like terms: 55 + -30 = 25
1x = 25

Divide each side by '1'.
x = 25

Simplifying
x = 25

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