Answer:
1. 3k + 7
2. 3(x + 2)
Step-by-step explanation:
For problem 1:
the coefficient is 1 (put 1 infront of k because there's no number there)
1k + 4k - 2k + 7
collect the like terms (the variables)
(1 + 4 - 2)k + 7
then calculate
3k + 7
For problem 2:
First, collect the like terms and calculate the sum.
3x + 2 + 4
3x + 6
Then factor the expression
3(x + 2)
