In order to solve for x in the equation <span>7x + 15 = 38, you must first subtract 15 from both sides.
</span><span>7x + 15 = 38
</span><span>7x + 15 - 15 = 38 - 15
7x = 23
Then you must divide so there is only 1x = a number. This can be done by dividing both sides by 7.
7x = 23
7x / 7 = 23 / 7
x ≈ </span>3.286
So the solution for x in the equation 7x + 15 = 38 is x ≈ 3.286.
Hope this helps!
Answer:
78.9
Step-by-step explanation:
sense the hundredth place is 5 or higher
40% of 38.70= 15.48
15.48+38.70= 54.18
