Answer:
He could use y+3x=-4
Step-by-step explanation:
When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21
Answer:
Step-by-step explanation:
$25 a month :) (its too short so i hope you have a lovely day)
It is 43 I used calculator