its like terms
2007-10-18 11:31:49 · 8 answers · asked by Andres A 1 in Science & Mathematics ➔ Mathematics
15 + 4m - 8 = 21
7 + 4m = 21
4m = 14
m = 14/4
m = 7/2 or 3.5
2007-10-18 11:35:51 · answer #1 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋
15 + 4 m - 8 = 21
4 m = 14
m = 7/2
2007-10-18 18:36:41 · answer #2 · answered by CPUcate 6 · 0⤊ 0⤋
15 +4(m-2)=21
15+4m-8=21
or 4m=21+8-15
or 4m=14
or m=14/4=7/2 ans
2007-10-18 18:57:21 · answer #3 · answered by MAHAANIM07 4 · 0⤊ 0⤋
you do 15 + 4 which is equals to 19
then you do 19 X m which is 19 m and them 19 x -2 which is -38 so now you have
15+4=19
19 x m= 19m
19 x 2=38
19m - 38=21
+38 +38
19m=59
19/19=0 59/19= 3.1
i think its right
I'm not really good at algebra, and i don't think this is has anything with like term like term would be like 5y+3m+7y 5 and 7 are like terms because they are Y
2007-10-18 18:45:32 · answer #4 · answered by Joanna Greenleaf 3 · 0⤊ 1⤋
15+4m-8=21
7+4m=21
4m=21
m=3 1/2
2007-10-18 18:37:37 · answer #5 · answered by datchik 4 · 0⤊ 0⤋
15+4m-30=21
-15 -15
4m-30=21
+30 +30
4m=51
2007-10-18 18:38:00 · answer #6 · answered by Kanesha J 5 · 0⤊ 2⤋
15+4(m-2)=21
15+4m-8=21
4m+7=21
4m=14
m=3.5or 7/2
2007-10-18 18:37:32 · answer #7 · answered by ►bored 2 · 0⤊ 0⤋
15+4(m-2)=21
15+4m-8=21
7+4m=21
4m=14
m=14/4
m=3.5
2007-10-18 18:37:34 · answer #8 · answered by Eric P 6 · 0⤊ 0⤋