Solve the following equation
15u+640=55u
Solve for u
15u + 640 = 55u
Group our variables 15u and 55u subtract 55u from both sides
15u + 640 - 55u = 55u - 55u
-40u + 640 = 0
Group our constants 640 and 0. subtract 640 from both sides
-40u + 640 - 640 = 0 - 640
-40u = -640
u = 16
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