Question

Solve this system of equations using substitution. Put your answer in ordered pair form, (x,y). 2x+3y=9 y=2x+13

Answer 1

so there are

2x+3y=9
y=2x+13

using substitution method you need just substitute the y value from second equation in place of y inside first equation
ihan solve this and will get the value of y
so this will need to replace it inside second equation and you can calcule the value of x

so than will get the right answer (x,y)

Answer 2

little help

from second equation y=2x+13 so this substitute in place of y inside first equation and will get

2x+3(2x+13)=9 now just you need to solve this for x

2x+6x+39=9
8x=9-39
8x=-30
x=-30/8
x=-15/4

y=2x+13
y=2(-15/4) +13
y=-15/2 +13
y=(-15+26)/2
y=11/2

(-15/4 ,11/2)