10x+10y-z=20x+20y-z

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Solution for 10x+10y-z=20x+20y-z equation:


Simplifying
10x + 10y + -1z = 20x + 20y + -1z

Add 'z' to each side of the equation.
10x + 10y + -1z + z = 20x + 20y + -1z + z

Combine like terms: -1z + z = 0
10x + 10y + 0 = 20x + 20y + -1z + z
10x + 10y = 20x + 20y + -1z + z

Combine like terms: -1z + z = 0
10x + 10y = 20x + 20y + 0
10x + 10y = 20x + 20y

Solving
10x + 10y = 20x + 20y

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
10x + -20x + 10y = 20x + -20x + 20y

Combine like terms: 10x + -20x = -10x
-10x + 10y = 20x + -20x + 20y

Combine like terms: 20x + -20x = 0
-10x + 10y = 0 + 20y
-10x + 10y = 20y

Add '-10y' to each side of the equation.
-10x + 10y + -10y = 20y + -10y

Combine like terms: 10y + -10y = 0
-10x + 0 = 20y + -10y
-10x = 20y + -10y

Combine like terms: 20y + -10y = 10y
-10x = 10y

Divide each side by '-10'.
x = -1y

Simplifying
x = -1y

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