Question

Y - 3x = 21
x - 5y = -35
solve by substitution(show steps please)

Answer 1

x=5

y=6

Explanation:

That is the answer

Answer 2

x=-5 y=6

Explanation:

y-3x=21

y-3x+3x=21+3x

y=3x+21

x-5y=-35

x-5(3x+21)=-35

x-15x-105=-35

-14x-105=-35

-14x-105+105=-35+105

-14x=70

x=-5

y-3(-5)=21

y+15=21

y+15-15=21-15

y= 6