Question

solve the equation
–4r + 9 = –7

Answer 1

Answer:

$- 4r + 9 = - 7 \\ \\ - 4r = 9 - 7 \\ \\ - 4r = 2 \\ \\ - r = \frac{2}{4} \\ \\ - r = \frac{1}{2} \\ \\ r = \frac{ - 1}{2}$

Answer 2

Answer:

-4

Step-by-step explanation:

-4r+9=-7

-4r+9-9=-7-9

-4r=-16

r=16÷-4

r=-4