Question

I need help with number 4

Answer 1

y= -5x+7----------------------1
4x+3y=3-----------------------2

rearrange the equation 1
5x+y=7
4x+3y=3

now multiply first equation by 3
15x+3y=21
4x+3y=3

now subtract both of eqns
11x=18
x=18/11
now put this x values in eqns and find y value
y=-5x+7
y=-13/11

Answer 2

The best method to solve this system is by using one- step equations for y=-5x+7 and using two- step equations for 4x+3y=3

Hope this helps