7x-6x=1
7x=6+1
7×=7
x=7:7
x=+- 1
2x+3=8
8x=3+2
8x=5
x=8:5
x=+-1,6
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7x-6x=1
7x=6+1
7×=7
x=7:7
x=+- 1
2x+3=8
8x=3+2
8x=5
x=8:5
x=+-1,6