SOLUTION: I don't understand what we are doing in math right now, (notations and equations) could you please help me and go step by step with this question?
2 (x+8) +5 (x-1) = 60
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2 (x+8) +5 (x-1) = 60
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Question 661957: I don't understand what we are doing in math right now, (notations and equations) could you please help me and go step by step with this question?
2 (x+8) +5 (x-1) = 60 Answer by ReadingBoosters(3246) (Show Source):
You can put this solution on YOUR website! Just in case you are yet in need of understanding...
Start with distribution
2(x+8) is the same as (2)(x)+(2)(8) = 2x+16
5(x-1) is the same as (5)(x)+(5)(-1) = 5x-5
2x+16 + 5x-5 = 60
..
Group like variables
2x + 5x + 16 - 5
7x + 11 = 60
..
Subtract 11 from both sides to isolate x
7x +11 - 11 = 60 - 11
7x = 49
..
Divide both sides by 7 to further isolate x
x = 7
...
Check your answer
2(7+8) + 5(7-1)
2(15) + 5(6)
30 + 30 = 60 Correct!!
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