Question

1. combine like terms 12c - 7 + 10c + 2

Explanation:

Step1: Identify like terms

The terms with $c$ are $12c$ and $10c$, and the constant terms are $-7$ and $2$.

Step2: Combine the $c$-terms

Add $12c$ and $10c$: $12c + 10c = 22c$.

Step3: Combine the constant terms

Add $-7$ and $2$: $-7 + 2 = -5$.

Step4: Write the combined expression

Put the combined $c$-term and constant term together: $22c - 5$.

Answer:

$22c - 5$