7(3х-1)=5(х-3); 16(4х+3)=11(3-х): (4-3х)+3(х-2)=3: 3(2х+4)+2(1-х)=4

Question

7(3х-1)=5(х-3); 16(4х+3)=11(3-х): (4-3х)+3(х-2)=3: 3(2х+4)+2(1-х)=4

Answer 1

1) 7(3х-1)=5(х-3)

21х-7=5х-15

21х-5х=-15+7

16х=-8

х=-8/16

х= -0,5

2) 16(4х+3)=11(3-х)

64х+48=33-11х

64х+11х=33-48

75х= -15

х= -15/75

х= -0,2

3) (4-3х)+3(х-2)=3

4-3х+3х-6=3

-2≠3 Уравнение корней не имеет

4) 3(2х+4)+2(1-х)=4

6х+12+2-2х=4

4х+14=4

4х=4-14

4х= -10

х= -10/4

х= -2,5