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Mathematics
Alina
18 June, 12:03
The sum of 42 and a number x is 51
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Titus Gonzales
18 June, 13:26
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x = 9
Step-by-step explanation:
"The sum of 42 and a number x is 51" in "mathy" words:
42 + x = 51
Then, subtract both sides by 42:
42 + x - 42 = 51 - 42
So
x = 9
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