1) -200; 2) 1; 3) 20 4) 1/9
Пошаговое объяснение:
1) 5,2x - 8 = -30 + 5,09x
5.2x - 5.09x=-30+8
0.11x=-22
x=-22/0.11
x=-200
2) 20.1x - 1.1 = 40 - 21x
20.1x +21x=40+1.1
41.1x=41.1
x=41.1/41.1
x=1
3) 51 -66.3x=-7-63.4x
-66.3x+63.4x=-7-51
-2.9x=-58
x=-58/(-2.9)
x=20
4) 19x-0.4=64x-10+0.6
19x-64x=-10+0.6+0.4
-45x=-9
x=-9/(-45)
x=1/9
1) -200; 2) 1; 3) 20 4) 1/9
Пошаговое объяснение:
1) 5,2x - 8 = -30 + 5,09x
5.2x - 5.09x=-30+8
0.11x=-22
x=-22/0.11
x=-200
2) 20.1x - 1.1 = 40 - 21x
20.1x +21x=40+1.1
41.1x=41.1
x=41.1/41.1
x=1
3) 51 -66.3x=-7-63.4x
-66.3x+63.4x=-7-51
-2.9x=-58
x=-58/(-2.9)
x=20
4) 19x-0.4=64x-10+0.6
19x-64x=-10+0.6+0.4
-45x=-9
x=-9/(-45)
x=1/9