Just doing a bit of math homework and im stuck on 2 questions(adsbygoogle = window.adsbygoogle || []).push({});

the first one is a similtanoius equation and goes like this

y = x - 1

y = x^{2}-3

ive been trying for about half an hour and all i end up with is

y = (square root of) y - 2

im not sure if it's right, it does not look it.

the 2nd question i dont know the name of and looks like

7^{2x}= 49

i dont even know where to begin on that, i just have to factorise it.

thankyou in advanced

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# Homework Help: Similtanious equation help?

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