Simplify (4x+9) - (6x-12)
2 answers:
The answer to this equation is:
Answer:
−2x + 21
Without parenthesis, the answer would be different.
Step-by-step explanation:
1) Distribute the Negative Sign:
4x + 9 + <em>−1 </em>(6x−12)
4x + 9 + <em>−1 </em>(6x) + (<em>−1 </em>)(−12)
4x + 9 + −6x + 12
2) Combine Like Terms:
<u>4x </u> + <u><em>9</em></u> + <u>−6x </u> + <u><em>12 </em></u>
(4x + −6x) + (9 + 12)
−2x + 21
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