Question

The top of a table has dimensions 2ft by (x+3) ft and has an area of 8 ft. Wich equation can be used to find the value of x for this situation
A. 2x +3=8
B.(x+3)=8
C. 2x+5=8
2(2x+3)=8
Part b
Solve the equation for x
A. 0.5
B.2.5
C.1
D. 1.5

Answer 1

Area = length × width, so 2·(x + 3) = 8. (This matches 2(x+3)=8.)

Solve: 2(x + 3) = 8
=> x + 3 = 4
=> x = 1.

So the correct equation is 2(x+3)=8, and x = 1 (choice C).