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5(r+9)-2(1-r)=1 I really don't understand HELP
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5(r+9)-2(1-r)=1 I really don't understand HELP

User Dendi Suhubdy
by
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1 Answer

4 votes
Hello!

5(r + 9) - 2(1 - r) = 1

Expand the equation:
5r + 45 - 2 + 2r = 1

Simplify:
7r + 43 = 1

Subtract 43 from both sides:
7r + 43 - 43 = 1 - 43
7r = -42
r = -6
User Malorie
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