169k views
24 votes
Y=-3x-5
y=4x+30
PLS HELP ASAP

User Jfrej
by
4.9k points

1 Answer

11 votes

{y,x} = {10,-5}

Explanation:

sorry if this dont make sense

solve equation [2] for the variable y

y = 4x +30

plug this in for variable y in equation [1 ]

(4x+30) +3x= -5

solve [1] for the variable x

7x= - 35

x= - 5

by now we know this much

y= 4x+30

x= - 5

use the x value to solve for y

y=4 (-5) + 30 = 10

solution

{y,x} = {10,-5}

User Dwolfeu
by
5.3k points