Question

If
x
=
2
and
y
=
5
, evaluate the following expression:
20
+
3
(
3
y
−
4
x
)

Answer 1

x=2 y = 5

20+3(3y-4x)

sub x = 2 and y= 5 valves in the expression

20+3(3*5-4*2)

20+3(15-8)

20+3*7

20+21

=41

20+3(3y-4x)=41

Answer 2

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