9x+x+9x+x-30=370

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Solution for 9x+x+9x+x-30=370 equation:


Simplifying
9x + x + 9x + x + -30 = 370

Reorder the terms:
-30 + 9x + x + 9x + x = 370

Combine like terms: 9x + x = 10x
-30 + 10x + 9x + x = 370

Combine like terms: 10x + 9x = 19x
-30 + 19x + x = 370

Combine like terms: 19x + x = 20x
-30 + 20x = 370

Solving
-30 + 20x = 370

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 + 20x = 370 + 30

Combine like terms: -30 + 30 = 0
0 + 20x = 370 + 30
20x = 370 + 30

Combine like terms: 370 + 30 = 400
20x = 400

Divide each side by '20'.
x = 20

Simplifying
x = 20

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