1000-40x=900-20x

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Solution for 1000-40x=900-20x equation:


Simplifying
1000 + -40x = 900 + -20x

Solving
1000 + -40x = 900 + -20x

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.
1000 + -40x + 20x = 900 + -20x + 20x

Combine like terms: -40x + 20x = -20x
1000 + -20x = 900 + -20x + 20x

Combine like terms: -20x + 20x = 0
1000 + -20x = 900 + 0
1000 + -20x = 900

Add '-1000' to each side of the equation.
1000 + -1000 + -20x = 900 + -1000

Combine like terms: 1000 + -1000 = 0
0 + -20x = 900 + -1000
-20x = 900 + -1000

Combine like terms: 900 + -1000 = -100
-20x = -100

Divide each side by '-20'.
x = 5

Simplifying
x = 5

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