First thing you would do is distribute the negative on the outside of the parentheses to the inside terms:
9x - 5x + 7 = 39
Now, combine like terms:
4x + 7 = 39
Subtract 7 from both sides to get variables on one side of the equal sign and constants on the other:
4x = 39 - 7
4x = 32
Divide both sides by 4 to isolate the variable x.
x = 32 / 4
x = 8
P(x) = 3000 + 1200x - 6x²
P'(x) = 1200 - 12x
1200 - 12x = 0
- 12x = - 1200
x = 100<span>
Shoutout to @dferreiraalves
Your answer is: x = 100
Have an amazing day and stay hopeful!
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4.54%, I hope I helped (:
M + w = 253m + 4w = 90 Let's do substitution, first by solving the first equation for m. m = 25 - w Substitute! 3(25 - w) + 4w = 9075 - 3w + 4w = 90w = 15 m = 25 - 15 = 10 Hope this helps!
