Respuesta :

seljk
1. 5x+1=4x-1
5x-4x=-1-1
x=-2

2. -10b+5=7b+5
7b+10b=5-5
17b=0
b=0

3. r+15=4r-6
4r-r=15+6
3r=21
r=21/3
r=7

4. 10-2v=-5v-50
-2v+5v=-50-10
3v=-60
v=-60/3
v=-20

5. 15y+3=18y
18y-15y=3
3y=3
y=3/3
y=1

6. -2x+6=4x+9
4x+2x=6-9
6x=-3
x=-3/6
x=-1/2

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