Question

685. 1) 4,5 = 2х ; 2) 3,1х - 4х 3) 5,6y; 4) -0,8 - 1,2 y; 5) 6м -3,9м; 6) -2м - 0,7 м

Answer 1

Ответ:1)2 4/5:0,7-1,8=2,8:0,7-1,8=4-1,8= 2,2;//// 2)6 :3/4+1,2=6:0,75+1,2=8+1,2=9,2;/// 3)0,8×1 1/4+5,6=0,8*1,25+5,6=1+5,6= 6,6

Пошаговое объяснение:

Answer 2

It seems like you've provided a list of equations or expressions. It's not entirely clear what you want to do with these equations, but I'll try to interpret and solve them based on the information you've given.

1. 4.5 = 2x To solve for x, divide both sides by 2: x = 4.5 / 2 x = 2.25

2. 3.1x - 4x To simplify, combine like terms by subtracting 4x from 3.1x: (3.1 - 4)x -0.9x

3. 5.6y

4. -0.8 - 1.2y

5. 6m - 3.9m To simplify, combine like terms by subtracting 3.9m from 6m: (6 - 3.9)m 2.1m

6. -2m - 0.7m To simplify, combine like terms by adding -2m and -0.7m: (-2 - 0.7)m -2.7m

If you have specific questions or need further clarification on any of these equations, please let me know.