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Dionis37
@Dionis37
August 2022
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Найти корень уравнения 1).2x-5=x+1. 2).3(x-5)=x+3. 3).7(x+6)=4(5x+4). 4).1.5(x+8)=-4x+1
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Namik0
1) 2х - х = 1 + 5
х = 6
2) 3х - 15 = х + 3
3х - х = 3 + 15
2х = 18
х = 9
3) 7х + 42 = 20х + 16
7х - 20х = 16 - 42
-13х = -26
х = 2
4) 1,5х + 12 = -4х + 1
1,5х + 4х = 1 -12
5,5х = -11
х = -2
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Answers & Comments
х = 6
2) 3х - 15 = х + 3
3х - х = 3 + 15
2х = 18
х = 9
3) 7х + 42 = 20х + 16
7х - 20х = 16 - 42
-13х = -26
х = 2
4) 1,5х + 12 = -4х + 1
1,5х + 4х = 1 -12
5,5х = -11
х = -2