u+90=30

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Solution for u+90=30 equation:


u+90=30

We simplify the equation to the form, which is simple to understand 
u+90=30

We move all terms containing u to the left and all other terms to the right. 
+1u=+30-90

We simplify left and right side of the equation. 
+1u=-60

We divide both sides of the equation by 1 to get u. 
u=-60

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