Question

The sum of two expressions is shown below.



(
8.4
x
+
2.9
)
+
(
5
−
3.7
x
)



What is the sum?


12.1
x
−
2.1


13.4
x
−
0.8


4.7
x
+
7.9


12.1
x
+
7.9

Answer 1

Combine like terms: 8.4x − 3.7x = 4.7x and 2.9 + 5 = 7.9, so the sum is 4.7x + 7.9.