– x + 7 = 6x
– x – 6x = – 7
-7x = -7
x = 1
-7+8=9х
– 9x = – 8 + 7
-9x = -1
x = -1/-9
х=0,11111111111
– x + 2 = 4x
– x – 4x = – 2
-5x = -2
x = 0.4
– 9x – 8 = – 8x
– 9x + 8x = 8
-x = 8
x = -8
– x – 7 = – 5x
– x + 5x = 7
4x = 7
x = 1.75
– 5x + 2 = – 10x
– 5x + 10x = – 2
5x = -2
x = -0.4
– x + 7 = 6x
– x – 6x = – 7
-7x = -7
x = 1
-7+8=9х
– 9x = – 8 + 7
-9x = -1
x = -1/-9
х=0,11111111111
– x + 2 = 4x
– x – 4x = – 2
-5x = -2
x = 0.4
– 9x – 8 = – 8x
– 9x + 8x = 8
-x = 8
x = -8
– x – 7 = – 5x
– x + 5x = 7
4x = 7
x = 1.75
– 5x + 2 = – 10x
– 5x + 10x = – 2
5x = -2
x = -0.4