If x+y=z and z=x+4,then x+y=x+4

1 answer:

3 0

That is true because as you can see in the other 2 equations, they both have z on one of the sides meaning that the sides that don't have z are equal to each other

Hope this helps :)

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I don’t understand this at all someone help me

marishachu [46]

The answer is 2x-3, you multiply the x value by 2 and then subtract 3 which gives you your y value

3 0

1 year ago

1 kg = 2.2lb<br><br> 6.3lb = ___kg<br> show work

poizon [28]

$\dfrac{1kg}{xkg}=\dfrac{2.2lb}{6.3lb}\ \ \ \ |cross\ multiply\\\\2.2x=1\cdot6.3\\\\2.2x=6.3\ \ \ |divide\ both\ sides\ by\ 2.2\\\\x=\dfrac{6.3}{2.2}\\\\x=\dfrac{63}{22}\\\\\boxed{6.3lb=2\frac{19}{22}kg\approx2.86kg}$