30-2x=90-42x

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Solution for 30-2x=90-42x equation:


Simplifying
30 + -2x = 90 + -42x

Solving
30 + -2x = 90 + -42x

Solving for variable 'x'.

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

Add '42x' to each side of the equation.
30 + -2x + 42x = 90 + -42x + 42x

Combine like terms: -2x + 42x = 40x
30 + 40x = 90 + -42x + 42x

Combine like terms: -42x + 42x = 0
30 + 40x = 90 + 0
30 + 40x = 90

Add '-30' to each side of the equation.
30 + -30 + 40x = 90 + -30

Combine like terms: 30 + -30 = 0
0 + 40x = 90 + -30
40x = 90 + -30

Combine like terms: 90 + -30 = 60
40x = 60

Divide each side by '40'.
x = 1.5

Simplifying
x = 1.5

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