Rozwiąż równania.
a) 5x+3=x+19
b) 2+3m=5-5m
c)4(x+3)=5x-19
d)2(2m-3)+2m=5(3-m)+1
e)1,2-1,9x=0,5(x+3)-0,3(x+5)
f)0,83(y-4)-0,33=0,25(y+5)+0,5
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a) 5x+3=x+19
4x=16
x=4
b) 2+3m=5-5m
8m=3
m=⅜
c)4(x+3)=5x-19
4x+12=5x-19
-x=-31
x=31
d)2(2m-3)+2m=5(3-m)+1
4m-6 +2m = 15-5m+1
6m-6=-5m+16
11m=22
m=2
e)1,2-1,9x=0,5(x+3)-0,3(x+5)
1,2 - 1,9x = 0,5x + 1,5 -0,3x -1,5
1,2 -1,9x = 0,2x
-2,1x=-1,2
x=12/21
x=4/7
f)0,83(y-4)-0,33=0,25(y+5)+0,5
0,83y - 3,32 - 0,33 = 0,25 y +1,25 +0,5
0,83y -3,65 = 0,25y+1,75
0,58y=5,4
y=540/58
y=9 i 9/29