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Sagot :
Answer:
2
Step-by-step explanation:
You have to undo in reverse order- subtraction and addition first, division and multiplication second, then exponents, and finally, parentheses.
Here's the work shown-
7a + 5 (-5) = 19 (-5)
7a/7 = 14/7
a = 2
Answer:
a=2
Step-by-step explanation:
You have to subtract 5 from 19 to get 14.
Then, you get:
7a=14
a=2
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