hello i need help with a few math problems im not quite sure how to do these problems and need help on how to do them step by step showing my work, if youre good at math please i need you !
heres the first problem. Using the substitution method.

4x+y=18
x=y -3

Question

hello i need help with a few math problems im not quite sure how to do these problems and need help on how to do them step by step showing my work, if youre good at math please i need you ! 
heres the first problem. Using the substitution method.

4x+y=18
x=y -3

alexwee123 · Answer

sub in x=y-3 for x in 4x+y=18 to find the y value then plug the newly found y value into either of the 2 equations to find the x value 
so let me start it off for you 
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