Solve for u. 3(3u-5)=39 .Simplify your answer as much as possible.
2 answers:
3(3u-5)=39
Mutiply the bracket by 3
(3)(3u)(3)(-5)= 39
9u-15=39
Move -15 to the other side
Sign changes from -15 to +15
9u-15+15= 39+15
9u= 54
Divide by 9
9u/9= 54/9
Cross out 9 and 9, divide by 9 and then becomes u.
u= 6
Answer: u= 6
Step-by-step explanation:
3(3u-5)=39
9u - 15 = 39
9u = 15 + 39
9u = 54
divide both by 9
u = 54/9
u = 6
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