Rozwiąż równania:
a) x+(x - 4) = x + 7
b) 6(x - 2) - (x - 1) = 6
a) x + x - 4 = x + 7
2x - 4 = x + 7 | -x
x-4= 7 | +4
x =11
b) 6x-12 -x+1 =6
5x-11 = 6 | +11
5x = 17
x = 17/5 = 3 i2/5
x+x-4=x+7
x+x-x=4+7
x=11
6x-12-x+1=6
5x-=6+11
5x=17
x=17/5
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a) x + x - 4 = x + 7
2x - 4 = x + 7 | -x
x-4= 7 | +4
x =11
b) 6x-12 -x+1 =6
5x-11 = 6 | +11
5x = 17
x = 17/5 = 3 i2/5
a) x+(x - 4) = x + 7
x+x-4=x+7
x+x-x=4+7
x=11
b) 6(x - 2) - (x - 1) = 6
6x-12-x+1=6
5x-=6+11
5x=17
x=17/5