Odpowiedź:
a) 4a-5b+15=(4*-2)-(5*-4)+15=-8-(-20)+15=-8+20+15=12+15=27
b)-6a+b-(-c)=(-6*2)+(-8)-(-14)=-12-8+14=-20+14=-6
a) –8–(–20)+15 = –8+35 = 27
b) –12+(–8)–(–14) = –12–8+14 = –20+14 = –6
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Odpowiedź:
a) 4a-5b+15=(4*-2)-(5*-4)+15=-8-(-20)+15=-8+20+15=12+15=27
b)-6a+b-(-c)=(-6*2)+(-8)-(-14)=-12-8+14=-20+14=-6
Odpowiedź:
a) –8–(–20)+15 = –8+35 = 27
b) –12+(–8)–(–14) = –12–8+14 = –20+14 = –6