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Math problem (solving equation) in junior one.
A:

( 1)6x+ 1=-4

Transposition: 6x=-4- 1

Merge: 6x=-5

So: x=-5/6

(2)2x+3=x- 1

Transfer item: 2x-x=- 1-3

Merge: x=-4

(3)-3x+5=2x- 1

Transposition: -3x-2x=- 1-5

Merge: -5x=-6

So: x=6/5

(4)3×7+4×= 6×2

Transposition: 3x+4x-6x=-2+7

Merge: x=5

(5)- 1/3+x=2x

Transposition:-1/3=2x-x

Merge: x=- 1/3

(6)7x+6= 16-3x

Transfer item: 7x+3x= 16-6

Merge: 10x= 10

So: x= 1

(7)-3/4x+2= 13- 1/4x

Transfer item: (-3/4) x+(1/4) x =13-2.

Merge: (-2/4)x=9

So: x=- 18.

(8)5-3x=8x+ 1

Transfer item: -3x-8x= 1-5

Merge:-1 1x=-4.

So: x=4/ 1 1.

(9)x- 1/3=8x+ 1

Transfer item: x-8x= 1+ 1/3

Merge: -7x=4/3

So: x=-4/2 1.

( 10)-x=-2/5x+ 1

Transposition: -x+(2/5)x= 1

Merge: -(3/5)x= 1

So: x=-5/3

( 1 1)3x-5=7+2x

Transposition: 3x-2x=7+5

Merge: x= 12