Final answer:
To write a two-step equation that involves multiplication and subtraction includes a negative coefficient, and has a solution of x=7, you can choose a coefficient for the variable x, write the equation, and solve it using the two steps of addition and division which comes to - 8.5
Step-by-step explanation:
To write a two-step equation that involves multiplication and subtraction, includes a negative coefficient, and has a solution of x=7, we can follow these steps:
Choose a coefficient for the variable x. Let's say -2.Write the equation as -2x - 10 = 7.Now, let's solve the equation by performing the two steps. First, add 10 to both sides to isolate the variable: -2x - 10 + 10 = 7 + 10, which simplifies to -2x = 17. Then, divide both sides by -2 to solve for x: x = 17/-2, which simplifies to x = -8.5.