Question

Решите плиз
1). х + 2,025 = 7,3;
2). (7,1 - х) + 2,3 = 3,9; .
3). 2,15 х – 3,5 = 0,8;
4). 23,2 – (х – 5,41) = 3,81;
5). 8,4:х + 7,2 = 11,2;
6). (29,42 - х): 2,3 = 9,6;
7). 25,2:х – 0,2 = 4,3;
8). 6х – 2х + 2,65 = 17,53;
9). (8,2 – х):0,9 = 7;
10). 3,1 + 4,6х + 2,7 = 19,6

Answer 1

1)
1)
1)x=7.3-2.025
x=5.275
2)7.1-x+2.3=3.9
9.4-x=3.9
-x=3.9-9.4
-x=-5.5
x=5.5
3)2.15x=0.8+3.5
2.15x=4.3
x=2
4)23.2-x+5.41=3.81
28.61-x=3.81
-x=3.81-28.61
-x=-24.8
x=24.8
6)(1471/50-x):23/10=48/5
1471/115-10/23x=48/5
1471-50x=1104
-5x=1104-1471
-50x=-367
x=7.34
7)126/5*1/x-1/5
126/5x-1/5=4.3
126/5x=4.3+1/5
126/5x=9/2
45x=252
x=5.6
8)4x+2.65=17.53
4x=17.53-2.65
4x=14.88
x=3.72
9)5.8+4.6x=19.6
4.6x=19.6-5.8
4.6x=13.8
x=3