Write the following as an equation, using x for the unknown number. Then solve.
-When 3 times a number is subtracted from 7 times the number, the result is 28. Find the number.
A) 3(x - 7) = 28x; 1.2
B) 7x - 3x = 28; 7
C) 3x + 7x = 28; 4
D) 3x(7 - x) = 28; -7

Question

Quizplus · Accepted Answer

The correct equation that represents the given situation is 7x - 3x = 28. Solving this equation (4x = 28) gives x = 7.

Write the Following as an Equation, Using X for the Unknown