b(2 ×10)+(3*1)+(0×1b)+(1×100)+(4×1000)
X +15 = 4x
15 = 3x
x=5
Your present age is 5
Step-by-step explanation:
<u>Justification of each step:</u>
- 1. Distributive property
- 2. Combining like terms; square of i is - 1.
- 3. Multiplication property of equation
- 4. Addition property of equation