Question

Решите пж номера 41 42

Answer 1

1) 8*(7х-3) = -48 * (3х + 2)

56х -24 = -144х-96

56х+144х = -96+24

200х = -72

Х = -0,36

2)

4,5*(8х+20)=6*(6х+15)

36х+90 = 36х + 90

36х-36х = 90-90

0х = 0

Х = 0

42

1)

-36*(6х+1) = 9*(4-2х)

-216х - 36 = 36 - 18х

-216х+18х = 36+36

-198х = 72

Х = -72/198

2)

3,2*(3х-2) = -4,8*(6-2х)

9,6х-6,4 = -28,8 + 9,6х

9,6х - 9,6х = -28,8 + 6,4

0 х = -22,4

Х = корней нет