Question

i am in algebra and im having trouble with this problem it is 3x=-2y-5
2y=-5x+5 i am using substitution method

Answer 1

Ok so because you are using substitution you want to get either y or x by itself. Which one would you like to get by itself?

Answer 2

X

Answer 3

Alright so...
3x=-2y-5
divide each side by 3 to get x alone
x=-2/3y-5/3

Answer 4

Now you can take this and plug it into your other equation to substitute for x.
2y=-5x+5
2y=-5(-2/3y-5/3 )+5
2y=10/3y+40/3
combine like terms (so subtract 10/3y from both sides)
-4/3y=40/3
divide each side by -4/3
y=-10

Answer 5

Now that you know your y value take y, which is -10 and plug it into your original equation
3x=-2y-5
3x=-2(-10)-5
3x=20-5
3x=15
divide each side by 3
x=5

Answer 6

y=-10
x=5

Answer 7

thank you Buckky

Answer 8

No problem hope it makes sense