2 years ago

Graph and solve the following equation: 7r-15=r+27

Mathematics

1 answer:

svp [43]2 years ago

3 0

7r-15= r+27

Move +r to the other side. Sign changes from +r to -r.

7r-r-15= r-r+27

6r-15= 27

Move -15 to the other side. Sign changes from -15 to +15

6r-25+15= 27+15

6r= 42

Divide by 6 for 6r and 42

6r/6= 42/6

r= 7

Answer : r= 7

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