Rozwiąż równania
a) 3x+5=2x-14
b) 5x+24=132
c) 7 (x+2) =40
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3x+5=2x-14
3x+5-2x+14=0
x+19=0
x=-19
-57+5=-38-14
-52=-52
5x+24=132
5x=132-24
5x=107
x=21,6
5*21,6+24=132
108+24=132
132=132
7(x+2)=40
7x=40-14
7x=26
x=26:7
x=3,7
7(3,7+2)=40
26+14=40
40=40
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3x+5=2x-14
3x+5-2x+14=0
x+19=0
x=-19
-57+5=-38-14
-52=-52
5x+24=132
5x=132-24
5x=107
x=21,6
5*21,6+24=132
108+24=132
132=132
7(x+2)=40
7x=40-14
7x=26
x=26:7
x=3,7
7(3,7+2)=40
26+14=40
40=40