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arinuhkas
@arinuhkas
July 2022
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40 баллов, помогите(
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ShirokovP
Verified answer
2(x - 7) = 3
2x - 14 = 3
2x = 17
x = 8,5
5(x - 9) = - 2
5x - 45 = - 2
5x = 43
x = 8,6
4(x + 2) = 3
4x + 8 = 3
4x = - 5
x = - 1,25
5(x + 5) = - 7
5x + 25 = - 7
5x = - 32
x = - 6,4
5(x + 9) = 9
5x + 45 = 9
5x = - 36
x = - 7,2
7(x - 1) = 3x
7x - 7 = 3x
7x - 3x = 7
4x = 7
x = 1,75
9(x + 7) = - x
9x + 63 = - x
9x + x = - 63
10x = - 63
x = - 6,3
5(x - 3) = 4x
5x - 15 = 4x
5x - 4x = 15
x = 15
4(x + 6) = x
4x + 24 = x
4x - x = - 24
3x = - 24
x = - 8
2 votes
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Answers & Comments
Verified answer
2(x - 7) = 32x - 14 = 3
2x = 17
x = 8,5
5(x - 9) = - 2
5x - 45 = - 2
5x = 43
x = 8,6
4(x + 2) = 3
4x + 8 = 3
4x = - 5
x = - 1,25
5(x + 5) = - 7
5x + 25 = - 7
5x = - 32
x = - 6,4
5(x + 9) = 9
5x + 45 = 9
5x = - 36
x = - 7,2
7(x - 1) = 3x
7x - 7 = 3x
7x - 3x = 7
4x = 7
x = 1,75
9(x + 7) = - x
9x + 63 = - x
9x + x = - 63
10x = - 63
x = - 6,3
5(x - 3) = 4x
5x - 15 = 4x
5x - 4x = 15
x = 15
4(x + 6) = x
4x + 24 = x
4x - x = - 24
3x = - 24
x = - 8