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zvonat [6]
3 years ago
6

Solve this equation: 2s + s + 12 = 132. a. s = 9 B. s = –30 C. s = 120 D. s = 40

Mathematics
2 answers:
madam [21]3 years ago
8 0
The equation given in the question is
2s + s + 12 = 132
3s + 12 = 132
3s = 132 - 12
3s = 120
s = 120/3
   = 40
From the above deduction we can see that the value of the unknown variable comes out to be exactly 40. This is possible because there is a single unknown variable and a single equation to get the value of the variable from. So the correct option among all the options given in the question is option "D".
4vir4ik [10]3 years ago
8 0
If you would like to solve the equation 2 * s + s + 12 = 132, you can do this using the following steps:

2 * s + s + 12 = 132
3 * s = 132 - 12
3 * s = 120      /3
s = 120/3
s = 40

The correct result would be D. s = 40.
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