Question

Which method would be the simplest way to solve the system?

7x+5y=19
-7x-2y=-16

a. graphing
b. substitution
c. elimination
d. distributive

Answer 1

Elimination, because you have -7 and 7, so you can just eliminate one of those equations.

Answer 2

c. Elimination cuz u can eliminate -7 & 7

Answer 3

What is the solution to the system
7x+5y=19
-7x-2y=-16

a.(2,1)
b.(1,2)
c.(7,5)
d.(-7,-2)

Answer 4

Wait let me work out then I'll tell u

Answer 5

ok

Answer 6

Its b.(1,2) cuz
7x+5y=19
-7x-2y=-16
-7x and 7x gets eliminated
Then +5y-2y=3y
19-16=3
So 3y=3
Y=3/3
Y=1
So subtitute y=1 in to 7x +5y=19
7x +5(1)=19
7x=19-5
7x=2
X=14/7
X=2

Answer 7

so b?

Answer 8

Sorry 7x=14 (not 2)

Answer 9

Yeah

Answer 10

Its b

Answer 11

can u help me with 4 more?

Answer 12

Okay

Answer 13

which method would be most efficient to solve the system?
y=1/2x
2x+3y=28

a. graphing
b. substitution
c. elimination
d. distributive

Answer 14

Y=1/2x (is it 1 divide by 2x?)

Answer 15

I Do not understand the question