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Let’s check out your problem:
Find the value of
3
b
+
4
3b+4
3
b
+
4
when
b
=
10
b = 10
b
=
10
.
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Math Problems
Precalculus
Determine the direction of a vector scalar multiple
Full solution
Q.
Find the value of
3
b
+
4
3b+4
3
b
+
4
when
b
=
10
b = 10
b
=
10
.
Plug in value of b:
Plug in the value of
b
b
b
into the expression.
3
b
+
4
=
3
(
10
)
+
4
3b + 4 = 3(10) + 4
3
b
+
4
=
3
(
10
)
+
4
Do multiplication first:
Do the multiplication first according to the order of operations.
\newline
3
×
10
=
30
3 \times 10 = 30
3
×
10
=
30
Add
4
4
4
to result:
Now, add
4
4
4
to the result of the multiplication.
\newline
30
+
4
=
34
30 + 4 = 34
30
+
4
=
34
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