Solve 3x + 10 = 10(2x-5)
Multiply out the right hand side so equation becomes 3x+10=20x-50Move x's to one side and numbers to other so 17x = 60x= 60/17
DS
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Simplify: y+y-x×x
Simplify (x + 3)(2x + 5) - (x - 1)