–1,8 – (5,2 – m) =, (2,7 + a) – (–3,3 + b) =, (x – 3,4) – (7,6 – y) = , – (2,3 + k) +...

Question

–1,8 – (5,2 – m) =, (2,7 + a) – (–3,3 + b) =, (x – 3,4) – (7,6 – y) = , – (2,3 + k) + (4,3 + c)=. Расскройте скобки срочно!!!

Answer 1

1)-1.8-(5.2-m)=-1.8-5.2+m=-7+m
2)(2.7+a)-(-3.3+b)=2.7+a+3.3-b=6+a-b
3)(x-3.4)-(7.6-y)=x-3.4-7.6+y=-11+x+y
4)-(2.3+k)+(4.3+c)=-2.3-k+4.3+c=2+c-k

Answer 2

1. -1,8 - (5,2 - m) = -1,8 - 5,2 + m = m - 7
2. (2,7+a) - (-3,3+b) = 2,7 + a + 3,3 - b = a - b + 6
3. (x-3,4) - (7,6 - y) = x - 3,4 - 7,6 + y = x + y - 11
4. -(2,3+k) + (4,3+c) = -2,3 - k + 4,3 + c = c - k + 2