Explanation:
-8+7(3y-10)
-8+21y-70
21y-70+8
21y-78
Last step because there is no more like terms to combine
Hope this helps
Answer:21y -78
Step-by-step explanation: Distribute the 7 to 3y and -10 to get 21y and -70.
Then combine like terms so the equation would be 21y -78
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