# Treenit 20-22

1. Ratkaise muuttuja
1. $a + 80 = 129$
2. $-a + 60 = 119$
3. $79 - k = 12$
4. $1,9 - p = -7,8$
5. $2(h - 2) = h + 72$
2. Ratkaise muuttuja
1. $2w = 4,5$
2. $3g = 135$
3. $2m + 7 = 49$
4. $5 - 5c = 3c - 19$
5. $4f = 8f + 120$
3. Ratkaise w
1. $2w = 4a$
2. $\frac{w}{2} = 8a$
3. $\frac{2w}{3} + \frac{1}{6} = \frac{5}{6}$
4. $8a + 4b - 2w = 0$
5. $4(w + 4) = 32$
6. $\frac{1}{w} = 2$