whoever knows how to do these please help, preferably someone knew that can show me all the work to solve these.
4x+y=18
x=y-3

Question

whoever  knows how to do these please help, preferably someone knew that can show me all the work to solve these.
4x+y=18
x=y-3

kymber · Answer

What're you supposed to do?

anonymous · Answer

solve by using the substitution method

asylum15 · Answer

Put x=y-3 into 4x+y=18

So 4(y-3) + y =18

Multiply out and I'm guessing you'll get a quadratic equation which you can solve for 2 x values.

parthkohli · Answer

It's already given that x = y - 3
So, 4x + y will be 4(y - 3) + 3

asylum15 · Answer

Nevermind my reply, you'll get 4y - 12 + y = 18

5y = 18 + 12 
5y = 30
y = 6