Answer:
A= 20
Step-by-step explanation:
6a+10=130 (subtract 10)
6a=120 (divide by 6)
a=20
If you dont understand the order, you follow PEMDAS backwards
Add/subtract
Mult./div.
Exponent/root
Answer:
8
Step-by-step explanation:
x+x+7=23
2x=16
x=8
Try it with some random number, like a=3.
Is "3+0 = 0+3 = 0" true? No.
If you were doing multiplication, then it would be true, but not with addition.
0.133 because 5 mean you have to round up so it is 0.133
Answer:
No solution
Step-by-step explanation:
10+2x=2x+8
2x=2x-2
0≠-2
