Help On Multi-step equasions (Pre-Algabra)?

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Some proplems are 8-5w=-37 and 0.4m-3=-1

2006-11-02 16:40:12 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

8-5w=-37 (-8 both sides)
-5w= 29 (/5 bs)
-w= 5.8 (time by - on both sides)
w= -5.8

0.4m-3=-1 (+3bs)
0.4m=2(/0.4bs)
m= 5

2006-11-02 16:46:42 · answer #1 · answered by mysterious_purple_haze 3 · 0⤊ 0⤋

8-5w=-37 subtract 8 from both sides
-5w=-45 divide by -5
w=9

0.4m-3=-1 add 3 to each side
.4m=2 divide by .4
m=5

2006-11-02 17:38:37 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋

0.4m-3=-1
0.4m=-1+3
0.4m=2
4/10m=2
4m=2x10
4m=20
m=5

2006-11-02 17:06:42 · answer #3 · answered by Mohammad b 1 · 0⤊ 0⤋