patulong naman po sagutin please po.
#sagutin po ng tama at maayos please lang po.samalat

Directions: Solve each system of equation by substitution.Check your solutions.

1.) {y=2x
{x+y=6


2.) {5x+10y=3
{x=-1/2y

3.) {y-x=3x+2
{2x+2y=14-y​