-3,15-(-4 1/2 + 3 3/4) = Решите. 1) 4 - у = -2 2/3 2) х + 0,4 = -1 2/3

Question

-3,15-(-4 1/2 + 3 3/4) =
Решите.
1) 4 - у = -2 2/3
2) х + 0,4 = -1 2/3

Answer 1

-3,15-(-4 1/2 + 3 3/4) = -3.15+4.5-3.75=-2.4

1) 4 - у = -2 2/3
-у=-2 2/3+4
-y=1 1/3
y=-1 1/3
2) х + 0,4 = -1 2/3
x=-1 2/3-0.4=-5/3-2/5
x=-25/15-6/15=-31/15
x=-2 1/15