1.Rozwiąż równanie;
2(x+3)-4=-12
2.Oblicz wartość wyrażenia;
(-7+(-3+5*12)):0,5=
1.
2x+6-4=-12
2x+2=-12
2x=-12-2
2x=-14
x=-7
2.
(-7+(-3+5*12)):0,5= (-7-3+60):0.5=(50):0.5=25
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1.
2(x+3)-4=-12
2x+6-4=-12
2x+2=-12
2x=-12-2
2x=-14
x=-7
2.
(-7+(-3+5*12)):0,5= (-7-3+60):0.5=(50):0.5=25
Ad1
2x+6-4=-12
2x=-14
x=-7
Ad2
(-7+(-3+5*12)):0,5= (-7-3+60):0.5=(50):0.5=25