помогите пожалуйста решить уравнения!!
1)5х-9=14+3х
2)2(х-3)=-7(1-х)
3) -3(х-2)=4(1-х)
4)2-6(х-1)=3-4(2-х)
только с решением
Предмет:
АлгебраАвтор:
carleighlutz1) 5x - 9 = 14 + 3x
5x - 3x = 14 + 9
2x = 23 ⇒ x = 11,5
2) 2(х - 3) = -7(1 - х)
2x - 6 = - 7 + 7x
2x - 7x = -7 + 6
-5x = -1 ⇒ x = 0,2
3) -3(х - 2) = 4(1 - х)
- 3x + 6 = 4 - 4x
- 3x + 4x = 4 - 6 ⇒ x = -2
4) 2 - 6(x - 1) = 3 - 4(2 - x)
2 - 6x + 6 = 3 - 8 + 4x
- 6x - 4x = 3 - 8 - 2 - 6
- 10x = -13 ⇒ x = 1,3
Автор:
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