Answer:
7x - 7
Step-by-step explanation:
Variable: X = the unknown number
2x + (-7) + 5x
= 7x - 7
Answer:
2a +b
Step-by-step explanation:
The rule for logarithms is ...
log(xy) = log(x) +log(y)
__
Applying this to the given problem, we have ...
log(12) = log(2×2×3)
= log(2) +log(2) +log(3)
= a + a + b
= 2a +b
Answer:
5x + 6
Step-by-step explanation:
4x - 3 + 2x + 1 - x + 8
= 4x + 2x - x -3 + 1 +8
= 5x + 6
D
It can give some balls more chance to be picked, making it unfair
