what is the answer to this math problem 3(5+3m) - 8 = 7?
回答 (6)
2009-11-19 1:04 pm
✔ 最佳答案
It is not clear what the problem is.If m = 0, then 3m = 0
So we have 3 ( 5 + 0) - 8
which is 3 x 5 - 8 = 15 - 8
which is 7
So the equation is true for m = 0.
2009-11-19 1:04 pm
3(5+3m) - 8 = 7
Distribute first 3 to the parenthesis:
15 +9m -8 = 7
Then collect and combine like terms:
9m = 7 -15 +8
9m = 0
m = 0/9
m = 0
Distribute first 3 to the parenthesis:
15 +9m -8 = 7
Then collect and combine like terms:
9m = 7 -15 +8
9m = 0
m = 0/9
m = 0
2009-11-19 2:36 pm
3(5 + 3m) - 8 = 7
3(5) + 3(3m) = 7 + 8
15 + 9m = 15
9m = 15 - 15
m = 0/9
m = 0
3(5) + 3(3m) = 7 + 8
15 + 9m = 15
9m = 15 - 15
m = 0/9
m = 0
2009-11-19 1:35 pm
opening brackets we get
15 + 9m - 8 = 7
But the numbers equate to 0
If 9m = 0 then m = 0
15 + 9m - 8 = 7
But the numbers equate to 0
If 9m = 0 then m = 0
2009-11-19 1:16 pm
3(5+3m) - 8 = 7
3(5+3m) = 7+8
5+3m =15/3
5+3m = 5
3m = 5-5 = 0
m = 0/3 = 0
3(5+3m) = 7+8
5+3m =15/3
5+3m = 5
3m = 5-5 = 0
m = 0/3 = 0
2009-11-19 1:11 pm
3(5+3m)-8=7
3(5+3m)=15
5+3m=15/3
5+3m=5
3m=0
m=0/3
m=0
3(5+3m)=15
5+3m=15/3
5+3m=5
3m=0
m=0/3
m=0
收錄日期: 2021-05-01 12:51:39
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