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15 votes
Sara says, "If you subtract 19 from my number and multiply the difference by - 7, the result is -77 what is Sara’s number?

User Stevland
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1 Answer

7 votes
-77=-7(x-19)
-77=-7x+133
-210=-7x
30=x

Your answer is 30.
User Sorrymissjackson
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