Question

solve the equation.
-4y + 9 = 15

a. 1 1/2
b. - 1 1/2
c. -6
d. 6

Answer 1

Which of the following would be the most appropriate first step in solving the equation below?

4x - 5 = - 21

Multiply both sides of the equation by 4.

Add 5 to both sides of the equation.

Subtract 5 from both sides of the equation.

Divide both sides of the equation by 4.

Answer 2

To solve the equation, we need to isolate y.

-4y + 9 = 15
-4y = 15 - 9
-4y = 6
y = 6 / -4
y = -1.5

So, the answer is: b. -1 1/2

Answer 3

The most appropriate first step in solving the equation 4x - 5 = - 21 would be to add 5 to both sides of the equation.

This would help in isolating the variable x and move closer to finding the solution.

So, the answer is: Add 5 to both sides of the equation.