200+20y=400-30y

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Solution for 200+20y=400-30y equation:


Simplifying
200 + 20y = 400 + -30y

Solving
200 + 20y = 400 + -30y

Solving for variable 'y'.

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

Add '30y' to each side of the equation.
200 + 20y + 30y = 400 + -30y + 30y

Combine like terms: 20y + 30y = 50y
200 + 50y = 400 + -30y + 30y

Combine like terms: -30y + 30y = 0
200 + 50y = 400 + 0
200 + 50y = 400

Add '-200' to each side of the equation.
200 + -200 + 50y = 400 + -200

Combine like terms: 200 + -200 = 0
0 + 50y = 400 + -200
50y = 400 + -200

Combine like terms: 400 + -200 = 200
50y = 200

Divide each side by '50'.
y = 4

Simplifying
y = 4

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