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Tasya [4]
3 years ago
13

Find the value of x in this equation use inverse operations and explain step by step

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0
42 = -6 + 3x
42 = 3x - 6      (just moving 3x and -6 around)
42+ 6 = 3x - 6 + 6     (adding 6 to both sides)
42 = 3x    
42/3 = 3x/3    (dividing by 3 to both sides to isolate for x)
14 = x

You're trying to isolate for x, so you have to get it alone on one side. To do this you have to add/subtract and multiply/divide, but remember that whatever you do to one side you have to do to the other. Hope this helped! :)
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