Question

X=5-y and 2x+3y=12? Must solve systems of equations substitution

Answer 1

in the space of x we'll equate it to 5-y

2(5-y)+3y=12

10-2y+3y=12

-2y+3y=12-10

y=2

subt y into first equation (x=5-y)

x=5-2

x=3