Question

Use the substitution method to solve this system of equations:
y = 3x + 8
2x + 6y = 14

Answer 1

so substitute y= 3x+8 in your 2nd equation
\(\large 2x +6(3x+8) =14\)
can you solve this for x ?

Answer 2

2x + 18x + 48 = 14
20x + 48 = 14
-48 = -48
20x = -34
20x/20 = -34/20
x = -1.7

Answer 3

thats correct! :)
now find 'y'
y =3x+8 = 3(-1.7) + 8 =...

Answer 4

y = -5.1 + 8
y = 2.9

Answer 5

thats correct too!
good work :)

Answer 6

Thank you so much :D

Answer 7

most welcome ^_^