Question

Решить уравнения:

1) 10• (1530 – х)= 5300

2) 3х – 212 = 403

3) 12 ( х+17) = 804

4) (х – 84) • 11= 176

5) 26у + 8935=14213

6) 138х – 100х –6861=1240

7) 7509-(212у+88у)=105

8) 3(4-5х)= - 26+4х

9) 5(13-2х)= - 19- 3х

10)1,2 •(0,5х-2)-0,6х= 3/4 х +1,83

Answer 1

1. 15300-10x=5300
-10x=-10000
x=1000
2. 3x=615
x=205
3.12x+204=804
12x=600
x=50
4. 11x-924=176
11x=1100
x=100
5. 26y=5278
y=203
6. 38x=8101
x≈ 213.18
7. 7509-212y-88y=105
-300y=-7404
y=-24.68
8. 12-15x=-26+4x
-19x=-38
x=2
9. 65-10x=-19-3x
-7x=-84
x=12
10. 0.6x-2.4-0.6x=3/4x+1.83
-3/4x=4.23
-0.75x=4.23
x=-5.64