Question

What is a possible first step in eliminating a variable in the following system of equations?
x + y = 3
3x - 4y = 23

Answer 1

Use the substitution method or replace the variables.

Answer 2

multiplying the first equation 3 then subtracting the equations from each other

Answer 3

a) Multiply the first equation by -4
b) Multiply the first equation by 3
c) None of the above
d) Choices 1 and 2

Answer 4

B

Answer 5

or D i guess..

Answer 6

cuz then you could subtract a negative number if you multiply by -4

Answer 7

its D

Answer 8

thank you!