Odpowiedź:
a) 2*2x+2*x=48
4x+2x=48
6x=48 /:6
x=8
b) 2*(y+1)+2*(y-2)=22
2y+2+2y-4=22
4y=24 /:4
y=6
c) 2*(2w-3)+2*(w-2)=50
4w-6+2w-4=50
6w=60 /:6
w=10
b)
[tex] \alpha + \alpha + \frac{1}{2 } \alpha = 180[/tex]
[tex]2 \frac{1}{2} \alpha = 180 \: \: \: \: \: \: \div 2 \frac{1}{2} [/tex]
[tex] \alpha = 72[/tex]
c)
[tex] {90}^{0} + \beta + \beta - {30}^{0} = 180^{0} [/tex]
[tex]2 \beta = 180 - 90 + 30[/tex]
[tex]2 \beta = 120 \: \: \: \: \: \: \div 2[/tex]
[tex] \beta = 60[/tex]
d)
[tex] \gamma +( \gamma + 10) + ( \gamma - 10) = 180[/tex]
[tex]3 \gamma = 180 \: \: \: \: \: \: \div 3[/tex]
[tex] \gamma = 60[/tex]
