1)22x-6*7x+5=0
22x-42x+5=0
-20x+5 = 0
20x-5 = 0
20x = 5
x = 5/20
х=0,25
2)3x+2+3x-1=28
3x + 3x = 28 + 1 – 2
6x = 27
x = 4.5
22x-6*7x+5=0
3x+2+3x-1=28
1)22x-6*7x+5=0
22x-42x+5=0
-20x+5 = 0
20x-5 = 0
20x = 5
x = 5/20
х=0,25
2)3x+2+3x-1=28
3x + 3x = 28 + 1 – 2
6x = 27
x = 4.5
22x-6*7x+5=0
-20x+5 = 0
20x = 5
х=0,25
3x+2+3x-1=28
6x = 27
x = 4.5