Question

How to solve -6x+5y=16 and x=5-3y using subsituation

Answer 1

you already have x solved for so you plug 5-3y into the x in -6x and you get -6(5-3y)+5y=16

-30+18y+5y=16

-30+23y=16

23y=46

y=2

x=5-3(2)

x=5-6

x=-1

Explanation: