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svp [43]
3 years ago
10

How do I solve two-step equations ex. 3g+5=17

Mathematics
2 answers:
notka56 [123]3 years ago
8 0
Easy ! you first subtract the 5 to itself and to the 17, so 5 - 5 and 17 - 5. your equation should look like 3g = 12. since we need to isolate the variable (g) we need to divide 3 by itself and 12 by 3, so 3 ÷ 3 and 12 ÷ 3. now you have g = 4!
andreyandreev [35.5K]3 years ago
6 0
3g+5=17
      -5   -5  your subtracting the number
       3g = 12
12 divided by 3 = 4 
         
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Try this solution:
1. if 1st number is 'x', the 2d number is 'y', then it is possible to make up the system of two equation according to the condition:
\left \{ {{x-y=1} \atop {x+y=21}} \right. \ =\ \textgreater \  \  \left \{ {{x=11} \atop {y=10}} \right.
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Answer: B: 20

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4 0
2 years ago
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Anuta_ua [19.1K]

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