1) (7-10Х)-(8-8Х)+(10Х+6)=-8
7 – 10x – 8 + 8x + 10x + 6 = – 8
– 10x + 8x + 10x = – 8 – 6 + 8 – 7
8x = -13
x = -1.625
2)(2Х+3)+(3Х+4)+(5Х+5)= 12- 7Х
2x + 3 + 3x + 4 + 5x + 5 = 12 – 7x
2x + 3x + 5x + 7x = 12 – 5 – 4 – 3
x = 0
3) (3Х+5)*(4Х-1)= (6Х-3)*(2Х+7)
раскроем скобки
12x2-3x+20x-5 = 12x2+42x-6x-21
-19x+16 = 0
19x-16 = 0
19x = 16
x = 16/19
х=0,84210526315
1) (7-10Х)-(8-8Х)+(10Х+6)=-8
7 – 10x – 8 + 8x + 10x + 6 = – 8
– 10x + 8x + 10x = – 8 – 6 + 8 – 7
8x = -13
x = -1.625
2)(2Х+3)+(3Х+4)+(5Х+5)= 12- 7Х
2x + 3 + 3x + 4 + 5x + 5 = 12 – 7x
2x + 3x + 5x + 7x = 12 – 5 – 4 – 3
x = 0
3) (3Х+5)*(4Х-1)= (6Х-3)*(2Х+7)
раскроем скобки
12x2-3x+20x-5 = 12x2+42x-6x-21
-19x+16 = 0
19x-16 = 0
19x = 16
x = 16/19
х=0,84210526315