I did where you subtract 4 from both sides then divide 2 from 4 and you get 0.5 as x for your answer but im not sure
Answer:
<h2>d=4</h2>
Step-by-step explanation:
Let's solve your equation step-by-step.
11=−d+15
Step 1: Flip the equation.
−d+15=11
Step 2: Subtract 15 from both sides.
−d+15−15=11−15
−d=−4
Step 3: Divide both sides by -1.
−d/−1=−4/−1
X= miles driven in April
(253 + 277 + 280 + x)/4= 284
add in parentheses
(810 + x)/4= 284
multiply both sides by 4
810 + x= 1136
subtract 810 from both sides
x= 326 miles
ANSWER: She must drive 326 miles in April to average at least 284 miles January through April.
Hope this helps! :)