Question

Determine the solution of the following systems of linear equations using elimination.

2x + 3y = 7
x – 2y – 4 = 0

Answer 1

2x + 3y = 7

now double the 2nd:
2x - 4y = 8
subtract them:
7y = -1
y = -1/7
sub into the 1st:
2x + 3(-1/7) = 7
2x = 52/7
x = 26/7