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Algebra Difficulty 1.5 Junior Find the answer
If 2x−3=10, what is the value of 4x?
A number or a short expression. Spacing and $ signs are ignored.
Solution
Since 2x−3=10, then 2x=13 and so 4x=2(2x)=2(13)=26.
(We did not have to determine the value of x.)
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