Answer:
29
Step-by-step explanation:
srry took a sec
You add 13 and 8 it gets 21 so for X its 13
Answer:
Relm tbh
Step-by-step explanation:
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)