Question

solve this equation
-2x+5y=12 for y
a-2b=-10 for b

Answer 1

Answer:

-2x+5y=12

5y=12+2x

y=12+2x/5

a-2b=-10

-2b=-10-a

-(2b)=-(10+a)

2b=10+a

b=10+a/2