Question

Select the choice below that could be the first step in solving the following system of equations using elimination:
-4x − 10y = 3
3y − 3x − 7 = 0
a. Multiply the first equation by -4 and the second equation by 3
b. Multiply the first equation by 3 and the second equation by 10
c. Replace the right side of the first equation with the second equation
d. Write the second equation in terms of x

Answer 1

The first thing you would do would be to
B

Answer 2

because of the -10y and 3y

Answer 3

would the answer be a?

Answer 4

no i think its B because When you multiply the y's they cancel out

Answer 5

-30y 30y

Answer 6

so B

Answer 7

thanks.

Answer 8

can u help with this one too?

Select the choice below that could be the first step in solving the following system of equations using substitution:
8x + 2y = 11
5y − x + 12 = 0
Multiply the first equation by -4
Multiply the second equation by 2
Write the second equation in terms of x
Replace the right side of the first equation with the second equation

Answer 9

i can try

Answer 10

a. Multiply the first equation by -4 b. Multiply the second equation by 2 c. Write the second equation in terms of x d. Replace the right side of the first equation with the second equation

Answer 11

i think its c

Answer 12

ya its c because the next step would be to make to other one = to x

Answer 13

any thing else?

Answer 14

thank yu and yeaa one more question

Answer 15

ok

Answer 16

Two numbers have a sum of 125. Their difference is 29. Find the larger number.
48
55
77
83

Answer 17

Its C 77

Answer 18

that it?

Answer 19

yea thankss

Answer 20

no prob