Question

@ganeshie8 please help?

Answer 1

@phi

Answer 2

@triciaal

Answer 3

they want you solve it by substitution
any ideas on how to start the solution ?

Answer 4

I'm not sure. Can you give me a hint?

Answer 5

look at the third equation; it looks simpler as it has only two variables.
maybe start by isolating \(z\)

Answer 6

So, we could start by solving for z?

Answer 7

what do you get when you isolate \(z\) ?

Answer 8

2z?

Answer 9

Ohh, wait actually I would have 2x=4?