Answer:
Your answer will be x=11/2
Step-by-step explanation:
What you want to do first is
Subtract 1 from both sides
2x+1-1=12-1
Simplify
2x=11
Divide both sides by 2

Simplify

Answer:
The first withdraw could be $30 the second could be $45 and the deposit could be $40
Step-by-step explanation:
130-30=100 100-45=55 95-55=40
130-30-45+40=95
Answer: D
Density= mass/volume
12.9g/8cm3= 1.6 g/cm3
1. x=1
5x=4+x
4x=4
x=1
2. x=3/4 or 0.75
2/3x=1/2
2x=1 1/2
x=3/4
3. x=1
3x-2x+4=15/3
x+4=15/3
x=1
4. x=5
4x+7=2x+17
2x+7=17
2x=10
x=5
5. x=20
.5x=10
x=20