237,322 views
39 votes
39 votes
How to solve system of equations y - 4 = x and y = 2x = -2

User AbdA
by
2.8k points

2 Answers

14 votes
14 votes

Answer: x = -1 y = -2

Explanation:

Was that supposed to be an equal in the second equation??

User Corne Beukes
by
2.5k points
10 votes
10 votes

Hello There today we solve your problem

Since you mean't the equation


y-4=x\\y+2x=-2

we will use that one instead

First off we can substitute
y for
x+4

Now we have an equation


x+4+2x=-2 then simplify


3x+4=-2

do simple algebra and we get that


x=-2

Since we said that
y=x+4 we can plug in our value of
x


y=-2+4\\y=2


\huge\red{\mid{\underline{\overline{\textbf{ANSWER}}}\mid}}


\boxed{x=-2}


\boxed{y=2}

User Stave Escura
by
2.9k points