Find the value of x + y; if
x + 2y = 27 and 2x + y = 33.
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Step-by-step explanation:
by using substitution method
.
x+2y= 27 ---(1) and 2x+y= 33 ----(2)
in first eq x= 27-2y----(3)
put the value of x in eq 2 we get
27-2y+y=33
= -y=33-27
y= -6
putting value of y in eq 3 we get
x= 27-2(-6)
27+12
= 39
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