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How to solve these questions?!​

How to solve these questions?!​-example-1

1 Answer

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Answer:

1. x + 4 = 9

Hint: the word 'sum' generally refers to addition.

2. 10a = 70

3.
(3)/(4) t = 15

4.
(1)/(4) x - 4 = 4

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