Solve the following equation
200+20y=400-30y
Solve for y
200 + 20y = 400 - 30y
Group our variables 20y and -30y add 30y to both sides
20y + 200 + 30y = -30y + 400 + 30y
50y + 200 = 400
Group our constants 200 and 400. subtract 200 from both sides
50y + 200 - 200 = 400 - 200
50y = 200
y = 4
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