Z góry dziekuje za rozwiązanie zadanie w załączniku
(3-5y) :5=6-(3y-2)3|*5
(3-5y):5 *5 = (3y-2)3*5
3-5y=(3y-2)15
3-5y=45y-30|+30
3-5y+30=45y|+5y
33=45y+5y
33=50y|50
33/50=y
3:4z –(Z-4) =2:3 (Z-2)
3:4z – (Z-4) =2/3 *(Z-2)|: (Z-2)
{3:4z-(Z-4)} : Z-2 =2/3
3:4z-2=2/3 |*4z
3-2=2/3*4z |-2/3
1/3=4z
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(3-5y) :5=6-(3y-2)3|*5
(3-5y):5 *5 = (3y-2)3*5
3-5y=(3y-2)15
3-5y=45y-30|+30
3-5y+30=45y|+5y
33=45y+5y
33=50y|50
33/50=y
3:4z –(Z-4) =2:3 (Z-2)
3:4z – (Z-4) =2/3 *(Z-2)|: (Z-2)
{3:4z-(Z-4)} : Z-2 =2/3
3:4z-2=2/3 |*4z
3-2=2/3*4z |-2/3
1/3=4z