Only one because there is one variable and the combined coefficients of x are non-zero.
(0.75(x+40)=0.70(x+20), 0.05x=14-30=-16, x=-320)
Answer:
x=3⋅± 2
=±4.2426
x=0
Step-by-step explanation:
The answer is 4.1
If the number is below 5, you round down, if it's 5 or above, you round up.