Add two like terms: 16x+(-9x)=7x
Add 15 to both sides: 7x=28
Divide 7 on both sides: x=4
If you combine -30 and +75 that will be 40. so GCF will be 40
B. Yes, because as x increases, y also increases
X Y
1 5 (1 x 5)
2 10 (2 x 5)
3 15 (3 x 5)
5 25 (5 x 5)
You said that. 2x - 9 = 7 . . . . .
Add. 9. to each side: 2x = 16 . . . . .
Divide each side by 2 : x = 8
10 inches would make him taller than 70, 9 inches would make him exactly 70
