Ответы на вопрос:
1)5х-2х=8+10 3х=18 х=18÷3 х=6 5×6-10=2×6+8 20=20 2)10х-9х-6=2х+8 х-2х=8+6 -х=14 х=-14 10×(-14)-3 (3×(-14)+2)=2×(-14)+8 -140+120=-20 -20=-20 3)2х+6-52-26х=-53-25х -24х+25х=-53+46 х=-7 2(-7+3)-13(4+2×(-7))=-53-25×(-7) -8+130=-53+175 122=122
1)5х-10=2х+8 5х-2х=8+10 3х=18/: 3 х=6 2)10х-3(3х+2)=2х+8 10х-9х-6=2х+8 10х-9х-2х=8+6 -1х=14/: (-1) х=-14 3)2(х+3)-13(4+2х)=-53-25х 2х+6-52-26х=-53-25х 2х-26х+25х=-53-6-52 1х=-111/: 1 х=-111 х=
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