Решите уравнение1) 13у+15у-24=602) 3z-2z+15=323) 6t+5t-33=04)(x+59):42=865)43m-215=4736)89n+68=90577)5905-27u=3168)34a-68=68

1) 13y + 15y - 24 = 60;

13y + 15y = 60 + 24;

28y = 84;

y = 84 : 28;

y = 3.

2) 3z - 2z + 15 = 32;

3z - 2z = 32 - 15;

z = 17.

3) 6t + 5t - 33 = 0;

11t = 33;

t = 33 : 11;

t = 3.

4) (x + 59) : 42 = 86;

x + 59 = 86 * 42;

x + 59 = 3612;

x = 3612 - 59;

x = 3553.

5) 43m - 215 = 473;

43m = 473 + 215;

43m = 688;

m = 688 : 43;

m = 16.

6) 89n + 68 = 9057;

89n = 9057 - 68;

89n = 8989;

n = 8989 : 89;

n = 101.

7) 5905 - 27u = 316;

5905 - 316 = 27u;

5589 = 27u;

u = 5589 : 27;

u = 207.

8) 34a - 68 = 68;

34a = 68 + 68;

34a = 136;

a = 136 : 34;

a = 4.