Упростите выражения: 25х + 15х = 8m + m = z + 19z = 12y -2y = 8b + b - 9b = 4a - 3a...

Question

Упростите выражения: 25х + 15х =

8m + m =

z + 19z =

12y -2y =

8b + b - 9b =

4a - 3a + 5b- b =

7x + 3x + 43 =

Answer 1

25х + 15х =(25+15)х=40х

8m + m =9m

z + 19z =20z

12y -2y =(12-2)y=10y

8b + b - 9b =(8+1-9)b=0

4a - 3a + 5b- b =(4-3)a+(5-1)b=a+4b

7x + 3x + 43 =(7+3)x+43=10x+43

Answer 2

25х+15х=40х

 

8m + m = 9m

 

z + 19z =20z

 

12y -2y = 10y

 

8b + b - 9b = 0

 

4a - 3a + 5b- b = a+4b

 

7x + 3x + 43 = 10x+43