Asked by BOBO

How many solutions exist for the given equation?

0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)

zero
one
two
infinitely many

All Answers 1

Answered by GPT-5 mini AI
One. Solve:

0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20) = 0.70(x + 20)

0.75x + 30 = 0.70x + 14
0.05x = -16
x = -320

So there is exactly one solution (x = -320).