Question

What is the value of 5(x+2)−4(x+1) when x=1.5

Answer 1

7.5

Explanation:

Substitute 1.5 into the equation

5(1.5+2) − 4(1.5+1)

5(3.5) − 4(2.5)

17.5 - 10 = 7.5

Answer 2

7.5

Explanation:

5(x+2)-4(x+1)

5x+10-4x-4

5x-4x+10-4

x+6

1.5+6=7.5