Answer:
1. 59
2. 13
3. 17
Step-by-step explanation:
for 1, substitute the x for 9 then multiply then subtract 4
7x-4
7(9)-4
63-4
59
for 2, substitute both of the d's for 4 hen multiply and subtract with the 4's
3d + (5-d)
3(4) + (5 - 4)
12 + 1
13
for 3, substitute g for 6 and then start off by dividing and multiplying
8 + 2g - g/2
8 + 2(6) - 6/2
8 + 12 -3
20-3
17
hope this helps in a way :)