Question

Solve the system by substitution y=10x y=-3x-104

Answer 1

Answer:  (-8, -80)

Step-by-step explanation:

y = 10x

y = -3x - 104

Substitute "y" with "10x" into the second equation, then solve for x:

10x = -3x - 104

13x = -104         added 3x to both sides

  x = -8             divided both sides by 13

Next, substitute -8 for x into the first equation to solve for y:

y = 10(-8)

  = -80