Question

Rozwiąż równanie

a) 5x+3= x + 19

b) 2 + 3m = 5 - 5m

Answer 1

5x -x =19 -3
4x =16 /:4
x =4

3m +5m = 5-2
8m = 3 /:8
m = 3/8

Answer 2

A. 5x + 3 = x + 19
5x - x = 19-3
4x = 16/4
x=4

b. 2 + 3m = 5 - 5m
3m+5m = 5-2
8m=3/8
m = 3/8

Answer 3

A) 5x+3= x + 19
5x-x=19-3
4x=16/4
x=4

b) 2 + 3m = 5 - 5m
3m+5m=5-2
8m=3/8
( w przybliżeniu to: m=0,375)