Question

Solve for x and y plz 12x - 5y = -20 x + 4 = y

Answer 1

(0,4)

Explanation:

System of Equations:

`\left \{ {{12x-5y=-20} \atop {x+4=y}} \right.`

x= y-4 .... Change format so you can substitute to first equation

12(y-4)-5y=-20 .... Plug in x= y-4 to first equation

12y - 48 -5y = -20 ..... Distributed

7y -48 =-20 .... Added like terms

7y=28 .... Added 48 to both sides

y=4

.... Plug y into the second equation to find x

x + 4=y

x +4 = 4 .... Plugged in y

x = 4-4 .... Subtracted 4 from both sides

x=0

Your answer is (0,4)

Hope this helps:)