23.0k views
3 votes
-5y + 4x = 4
-7y - 10x = - 10

2 Answers

3 votes

Answer:

x=1 y=0

Explanation:

User Matt Weber
by
5.8k points
0 votes

Answer:

The answer is

Explanation:

use system of equations and substitution.

to solve this equation, one variable needs to be cancelled out to solve for the other.


-5y+4y=4\\-7y-10x=-10\\

looking at this problem, we can manipulate -5 and -7 to equal 35 and -35 to get rid of the variable x to solve for y.


-7(-5y+4x=4)\\5(-7y-10x=-10)\\\\35y-28x=-28\\-35y-50x=-50

with this, we can cancel out 35x and -35x.


-28x=-28\\-50x=-50

manipulate the equation to equal x.


x=1\\x=1.

plug 1 for x back into one of the equations to solve for y.


-5y+4(1)=4\\-5y+4=4\\-5y=0\\y=0

therefore, (1,0)

hope this helps :)

User Marvin Pinto
by
5.4k points