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Mathematics 10 Online
OpenStudy (liv1234):

@ganeshie8 please help?

OpenStudy (liv1234):

OpenStudy (liv1234):

@phi

OpenStudy (liv1234):

@triciaal

ganeshie8 (ganeshie8):

|dw:1446478549845:dw|

ganeshie8 (ganeshie8):

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

OpenStudy (liv1234):

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

ganeshie8 (ganeshie8):

look at the third equation; it looks simpler as it has only two variables. maybe start by isolating \(z\) |dw:1446478684418:dw|

OpenStudy (liv1234):

So, we could start by solving for z?

ganeshie8 (ganeshie8):

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

OpenStudy (liv1234):

2z?

OpenStudy (liv1234):

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

ganeshie8 (ganeshie8):

|dw:1446478912942:dw|

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