Answer:
7x + [12]
Explanation:
Now we have to,
→ Simplify the given expression.
Major steps used are,
→ Rearranging the expression.
→ Combining the like terms.
The expression is,
→ 10x + 12 - 3x
Let's simplify the expression,
→ 10x + 12 - 3x
→ 10x - 3x + 12
→ (10x - 3x) + 12
→ (7x) + 12
→ 7x + 12
Hence, the answer is 7x + 12.