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kate1232422
@kate1232422
July 2022
2
6
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упрощение выражений
-9(a+4-2с)-4
-2(3+b-с)+10
-5(-5+3a)+25
-12(2+b-с)+20
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пимочка
-9(a+4-2с)-4=-9а-36+18с-4=-9а+18с-40
-2(3+b-с)+10=-6-2b+2c+10=-2b+2c+4
-5(-5+3a)+25=25-15a+25=50-15a
-12(2+b-с)+20=-24-12b+12c+20=-12b+12c-4
2 votes
Thanks 1
dayanaandinkara
1) -9(
a+4-2с)-4=
= -9а-36+18с-4=
=-9а-40+18с
2)
-2(3+b-с)+10=
=-6-2в+2с+10=
=4-2в+2с
3)
-5(-5+3a)+25=
=25-15а+25=
=50-15а
4)
-12(2+b-с)+20=
=-24-12в+12с+20=
=-4-12в+12с
0 votes
Thanks 1
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Answers & Comments
-2(3+b-с)+10=-6-2b+2c+10=-2b+2c+4
-5(-5+3a)+25=25-15a+25=50-15a
-12(2+b-с)+20=-24-12b+12c+20=-12b+12c-4
= -9а-36+18с-4=
=-9а-40+18с
2) -2(3+b-с)+10=
=-6-2в+2с+10=
=4-2в+2с
3) -5(-5+3a)+25=
=25-15а+25=
=50-15а
4) -12(2+b-с)+20=
=-24-12в+12с+20=
=-4-12в+12с