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Настя7591
@Настя7591
August 2022
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помогите пожалуйста. Раскройте скобки и упростите: 18×(2y+3)+2×(y+6), 4×(7x+1)+2(x+8), (3b+1)×7+(4x-1)×2, 11×(13x+4)+(4x-3)×5, (17b+5)×5-b-10.
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АринаАринина
1) 18×(2y+3)+2×(y+6)
36y + 54 + 2y + 12
38y + 66
2(19y + 33)
2) 4×(7x+1)+2(x+8)
28x + 4 + 2x + 16
30x + 20
10(3x + 2)
3)
(3b+1)×7+(4x-1)×2
21b + 7 + 8x - 2
7 (3b + 1) + 2 (4x - 1)
или
21b - 5 + 8x
4)
11×(13x+4)+(4x-3)×5
143х + 44х + 20х - 15
207х - 15
(17b+5)×5-b-10
85b + 25 - b - 10
84b - 15
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Настя7591
боооольшооое спасибо
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Answers & Comments
36y + 54 + 2y + 12
38y + 66
2(19y + 33)
2) 4×(7x+1)+2(x+8)
28x + 4 + 2x + 16
30x + 20
10(3x + 2)
3) (3b+1)×7+(4x-1)×2
21b + 7 + 8x - 2
7 (3b + 1) + 2 (4x - 1)
или
21b - 5 + 8x
4) 11×(13x+4)+(4x-3)×5
143х + 44х + 20х - 15
207х - 15
(17b+5)×5-b-10
85b + 25 - b - 10
84b - 15