10-7x=90x-21

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Solution for 10-7x=90x-21 equation:


Simplifying
10 + -7x = 90x + -21

Reorder the terms:
10 + -7x = -21 + 90x

Solving
10 + -7x = -21 + 90x

Solving for variable 'x'.

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

Add '-90x' to each side of the equation.
10 + -7x + -90x = -21 + 90x + -90x

Combine like terms: -7x + -90x = -97x
10 + -97x = -21 + 90x + -90x

Combine like terms: 90x + -90x = 0
10 + -97x = -21 + 0
10 + -97x = -21

Add '-10' to each side of the equation.
10 + -10 + -97x = -21 + -10

Combine like terms: 10 + -10 = 0
0 + -97x = -21 + -10
-97x = -21 + -10

Combine like terms: -21 + -10 = -31
-97x = -31

Divide each side by '-97'.
x = 0.3195876289

Simplifying
x = 0.3195876289

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