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f = 19 - 7 = 12
2. 3t + 1 = 2t + 4
3t - 2t = 4 -1
t = 3
3. 2r + 3 = r + 7
2r - r = 7 - 3
r = 4
4. 3w - 2 = 2w - 5
3w - 2w = -5 + 2
w = -3
5. 8y + 15 = 7y + 5
8y -7y = 5 -15
y = -10
6. 2y + 13 = 8 + y
y = -5
7. 3d - 17 = 2d + 5
d = 22
8. 3p - 44 = 8 + 2p
p = 52
9. 5r + 30 = 15 + 4r
r = -15
10. 3h + 12 -2h = 12
h= 0
jawaban: 2y+y=13+8
jawaban : 8f-7f= 25 3y = 21
1f =25
2.3t +1 =2t+4 7.3d-17=2d+5
jawaban : 3t +2t = 4-1 jawaban : 3d+2d=5+17
5t=3 5d = 22
3.2r+3=r+7 8.3p-44=8+2p
jawaban : 2r+r= 7 -3 jawaban :3p-2p = -44+8
3r = 4 p = -36
4. 3w-2=2w-5 9.5r+30=15+4r
jawaban : 3w+2w = 5+2 jawaban : 5r-4r=30+15
5w =7 r= 45
5.8y+15=7y+5 10 .3h+12-2h=12
jawaban : 8y+7y = 5-15 jawaban : 3h-2h=12-12
15y = 10 h=0