Translate the phrase: "Seven more than twice a number is thirty-one" into an algebraic equation.

Solve the system by substitution: 3x + 4y = 18 and y = 2x - 3. Provide exact values.

Find three consecutive integers whose sum is 237. What are the three integers?

A rectangular playground's length is 3 times its width minus 5 feet (length = 3 × width – 5). The perimeter is 290 feet. Solve for the width, then calculate the length.

Solve for x: 1/3(2x + 5) = 7.