1000-y=400

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Solution for 1000-y=400 equation:


Simplifying
1000 + -1y = 400

Solving
1000 + -1y = 400

Solving for variable 'y'.

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

Add '-1000' to each side of the equation.
1000 + -1000 + -1y = 400 + -1000

Combine like terms: 1000 + -1000 = 0
0 + -1y = 400 + -1000
-1y = 400 + -1000

Combine like terms: 400 + -1000 = -600
-1y = -600

Divide each side by '-1'.
y = 600

Simplifying
y = 600

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