Question

For which system of equations would elimination be the simplest technique to choose?
a: y = 2x and x + 3y = 5
b: 4x + 3y = 6 and 3y = 5
c: x + y = 7 and x - y = 12
d: 3x - 2y = 8 and 4x - 5y = 20

Answer 1

For a and b, the simplest would probably be substitution.

Answer 2

is it d

Answer 3

It would be C because you can already eliminate the x or y. If you subtract the two equations, you can get rid of the x. If you add them, you can eliminate the y.

Answer 4

ok