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padilas [110]
3 years ago
6

Solve 4x - 9 = 15

Mathematics
2 answers:
omeli [17]3 years ago
7 0
It’s b because negative 9 turns into positive 9 to cancel out the number to isolate variable. Then you also add positive 9 to 15 and that makes 24. But don’t forget about 4x which divide into 4x/4 and 24/4 to again isolate the variable. Then 24/4 = 6
nikdorinn [45]3 years ago
5 0

4x - 9 = 15

Add 9 on both sides (-9 + 9 cancels out and 15 + 9 = 24)

4x = 24

Divide by 4 on both sides (4 / 4 cancels out and 24 / 4 = 6)

x = 6

<u>The answer is B</u>

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