To verify that 1/5(5x-20)-1/2(4x-8) is equivalent to -x. which procedure can i follow to determine if the two expressions are equivalent? add the two expressions, put an equal sign between the two expressions and solve for x, substitute 5 into the first expression, substitute 4 into the second expression, and evaluate the, or substitute 5 into each expression and evaluate them?

For which rational expression is -2 an excluded value of x?

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.