Answer:
Step-by-step explanation:
-2=y+5
y+5+2=0
y+7=0
y=-7
x-7=4+10
x-7=14
x=14+7
x=21
-2x+3x-5=6-21
x-5=-15
x=-15+5
x= -10
70=7m
m=70:7
m=10
4-14=5x
-10=5x
-10:5=x
x= -2
2y+3y=4-6-13
5y=-15
y=-15:5
y= -3
