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
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