Find the value of each variable
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The tile along the edge of a triangular community pool needs to be replaced? ?

How are algebraic expressions evaluated using substitution?

Asoftball team played ten games, scoring 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 runs. they lost by one run in exactly five games. in each of their other games, they scored twice as many runs as their opponent. how many total runs did their opponents score?