(2x+5y-21)+(x+2x-20)=

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Solution for (2x+5y-21)+(x+2x-20)= equation:


Simplifying
(2x + 5y + -21) + (x + 2x + -20) = 0

Reorder the terms:
(-21 + 2x + 5y) + (x + 2x + -20) = 0

Remove parenthesis around (-21 + 2x + 5y)
-21 + 2x + 5y + (x + 2x + -20) = 0

Reorder the terms:
-21 + 2x + 5y + (-20 + x + 2x) = 0

Combine like terms: x + 2x = 3x
-21 + 2x + 5y + (-20 + 3x) = 0

Remove parenthesis around (-20 + 3x)
-21 + 2x + 5y + -20 + 3x = 0

Reorder the terms:
-21 + -20 + 2x + 3x + 5y = 0

Combine like terms: -21 + -20 = -41
-41 + 2x + 3x + 5y = 0

Combine like terms: 2x + 3x = 5x
-41 + 5x + 5y = 0

Solving
-41 + 5x + 5y = 0

Solving for variable 'x'.

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

Add '41' to each side of the equation.
-41 + 5x + 41 + 5y = 0 + 41

Reorder the terms:
-41 + 41 + 5x + 5y = 0 + 41

Combine like terms: -41 + 41 = 0
0 + 5x + 5y = 0 + 41
5x + 5y = 0 + 41

Combine like terms: 0 + 41 = 41
5x + 5y = 41

Add '-5y' to each side of the equation.
5x + 5y + -5y = 41 + -5y

Combine like terms: 5y + -5y = 0
5x + 0 = 41 + -5y
5x = 41 + -5y

Divide each side by '5'.
x = 8.2 + -1y

Simplifying
x = 8.2 + -1y

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