Question

What is the sum of the solutions to (x − 6)(x + 0.7) = 0 ?

A) −6.7
B) −5.3
C) 5.3
D) 6.7

Answer 1

C

Explanation:

for this equation to be 0

either x - 6=0 or x+0.7 = 0

so x=6 OR x=-0.7

sum = 5.3