Question

If

x
=
4
and
y
=
7
, evaluate the following expression:
20
+
2
(
3
y
−
4
x
)

Answer 1

30

Explanation:

20+2((3)(7)−(4)(4))

=20+2(21−(4)(4))

=20+2(21−16)

=20+(2)(5)

=20+10

=30