Question

Помогите

а) 9х – 14 = 7х – 36;
б) 8 - 5n = 10 - 4n;
в) 35 – 7х = 37 – 5х;
г) 28 - 9m = -8 - 10m;

д) – 3х + 13 = - 15 -10х;
е)10z + 7 = 9z + 5;
ж) 25 - 12m = 45 – 8m;
з) -9у+32=7у

Answer 1

а) 9х -14 = 7х -36

2х = 50

х = 25

б) 8 - 5n = 10 - 4n;

-2 = n

n = -2

в) 35 – 7х = 37 – 5х;

-2x = 2

x = -1

г) 28 - 9m = -8 - 10m;

m = -36

д) – 3х + 13 = - 15 -10х;

7х = 28

х=4

е)10z + 7 = 9z + 5;

Z = 5 -7

z=-2

ж) 25 - 12m = 45 – 8m;

4m = 20

m = 5

з) -9у+32=7у

- 16y = -32

y = 2

P.S ставьте ♥