Rozwiąż równanie .
a) 4(x + 3 ) = 5x - 19
b) 2(2m - 3) + 2m = 5(3 - m) + 1
Zeszyt Ćw str. 28 zadanie 5
4x+12+19=5x
5x-4x=31
x=31
4m-6+2m=15-5m+1
6m+5m=16+6
11m=22
m=2
a) 4x+12=5x-19
4x-5x=-19-12
-1x=-31
x=-31:(-1)
b)4m-6+2m=15-5m+1
4m+2m+5m=16+6
m=22:11
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a) 4(x + 3 ) = 5x - 19
4x+12+19=5x
5x-4x=31
x=31
b) 2(2m - 3) + 2m = 5(3 - m) + 1
4m-6+2m=15-5m+1
6m+5m=16+6
11m=22
m=2
a) 4x+12=5x-19
4x-5x=-19-12
-1x=-31
x=-31:(-1)
x=31
b)4m-6+2m=15-5m+1
4m+2m+5m=16+6
11m=22
m=22:11
m=2