Question

Solve using the substitution method
x + 3y = −8,
4x − 3y = 23

Answer 1

x=3
y=-11/3

Answer 2

ho u got that

Answer 3

how

Answer 4

x + 3y = −8 add both sides......5x=15--->x=3--->3+3y=-8
4x − 3y = 23 3y=-11
y=-11/3

Answer 5

3y= -8-x
sub that into the second equation
to get
4x - (-8-x) = 23
open brackets to get 5x = 15
x = 3
then 3 + 3y = -8
3y = -11
y = -11/3

Answer 6

hmm ok....but the 1st solution is kinda easier cause -3y and 3y r simplified

Answer 7

k