218k views
4 votes
X= 5y + 7
2x + 4y = 0
Solve for substitution

2 Answers

6 votes
Point slope form: (2,-1)
Equation form: x=2 , y=-1


Solve for the first variable in one of the equations then substitute the result into the other equation.
User Yorgos Pagles
by
5.9k points
3 votes

Answer:

x=2 and y= -1

Explanation:

substitute x value in equation 2

2(5y+7)+4y=0

10y+14+4y=0

14y = -14

y= -1

here,

x= 5(-1)+7

x= -5+7

x=2

User Monet
by
6.2k points