Solve by elimination

x + 2y = 6
x - 3y = 7

In order to solve by elimination(means cancel out one variable then the next):

LOOOK AT THE IMAGE, feel free to ask any questions.

X+2y=6
-X+3y=-7

Then
5y=-1

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)