100=30x+40x

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Solution for 100=30x+40x equation:


Simplifying
100 = 30x + 40x

Combine like terms: 30x + 40x = 70x
100 = 70x

Solving
100 = 70x

Solving for variable 'x'.

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

Add '-70x' to each side of the equation.
100 + -70x = 70x + -70x

Combine like terms: 70x + -70x = 0
100 + -70x = 0

Add '-100' to each side of the equation.
100 + -100 + -70x = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -70x = 0 + -100
-70x = 0 + -100

Combine like terms: 0 + -100 = -100
-70x = -100

Divide each side by '-70'.
x = 1.428571429

Simplifying
x = 1.428571429

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