Answer:
4n+6
Step-by-step explanation:
2(2n+3)
Distribute the 2:
2*2n=4n
2*3=6
4n+6
Answer:
b equals 20
Step-by-step explanation:
b - 13 = 7
7 + 13 = b
7 + 13 = 20
Answer:
1/2
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
Consider the equations with the same number of equations and variables as shown below,
<u>Case 1</u>

This equation has no solution because it is not possible to have two numbers that give a sum of 0 and 1 simultaneously.
<u>Case 2</u>

This equation has infinitely many possible solutions.
Therefore it is FALSE to say a linear system with the same number of equations and variables, must have a unique solution.
1.35261 * 285 = 385.49385
So i believe 385.49? I might've done that wrong