What is the value of x in the equation 3x – y = 18, when y = 27?
2 answers:
3x-y=18, substitute y=27 then you get 3x-27=18., add 27 to each side to get x by itself, 3x=45, then divide by 3 and you get x=15
<span>3x – y = 18
</span><span>3x – 27 = 18
</span><span>3x= 45
x =15</span>
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