Question

pls help ss below

Answer 1

so this is a system of equations with 3 variables and just 2 equations - bc. there are 3 variables to solve this system you need 3 equations - how can you get - make - from these two equations one 3rd ?

Answer 2

I can add or subtract which is hwat i did?

Answer 3

exactly what you wan to do for get the 3rd equation and after this you will have a system with 3 equations and 3 variables what you need to solve it

Answer 4

yes but how should i solve it?
I have b=19-4a should I subsitute for my other equations???

Answer 5

exactly substitute this value of b inside other two equations and so will get a system of two equations with 2 variables

Answer 6

ok thanks :)

Answer 7

np

yw

anytime