<span>(f+g)(x) = 2x+21 +x-24
= 3x -3
now put x=3 in order to find (f+g)(3)
(f+g)(3) = 3(3) -3
= 9-3
= 6, i hope this helps </span>
(4x+7)/5 = 58
Cross Multiply:
4x+7 = 5*58
4x + 7 = 290
Subtract 7 from both sides:
4x = 283
Divide by 4 on each side:
x = 70.75
D) 70.75! :)
The answer is 7x/12 - 1/2. Its the first option in your picture. Hope this helps .