Question

Solve the elimination method.(my number three key went out)
5a+2b= -three9
-5a+b=48
the solution is?

Answer 1

add equation 1 and equation 2. a will be eliminated

Answer 2

you got 3b=9

Answer 3

so it would be three b=9

Answer 4

ok so b=three

Answer 5

good

Answer 6

so the 2nd part i have to solve for a

Answer 7

to get 2 solution (9,?)

Answer 8

yes. substitute b=3 in any equation. prefer easy one

Answer 9

take second eq. -5a+3=48
-5a=45
a=-9

Answer 10

so (9,-9)

Answer 11

so this solution is infintly many solution

Answer 12

i see how you got the 48 divide into 5=-9

Answer 13

only one answer for a and b. a=-9,b=3

Answer 14

oh ok we got the first answer three ok ok

Answer 15

thanks