4x+3x=42
7x=42
x=6
4(6)+3(6)=42
24+18= 42
42=42
I know it's too much but hope this helped :)
Answer:
6789
Step-by-step explanation:
Answer:
24% error
Step-by-step explanation:
Vobserved - Vtrue
-------------------------------
Vtrue
38 - 50
---------------
50
=
-12
-------------
50
= -24%
= 24% error
A. 45/100 = 9/20
B. 45x = 2700
x=60
<span>C. 60-27= 33</span>