( 1) (0.5+x)+x-9.8+2

(2) 2(+X+0。 5)=9.8

⑶25000+x = 6x

(4)3200-40+5 times

(5) X-0.8X=6

(6) 12x- 8x=4.8

(7) T.5+2X= 15

(8) 1.2x=8 1.6

(9) x+5.6=9.4

( 10)x-0.7x=3.6

The solution of the fractional equation is as follows:

1, see if both sides of the equal sign can be calculated directly.

2. If the two sides can't be calculated directly, use the sum-difference product quotient formula to deform the equation.

3. Separate the items that can be added or subtracted.

4. Divide both sides by a nonzero number at the same time.

note:

(1), only items with unknowns can be added or subtracted, or only items without unknowns can be added or subtracted.

(2) Dividing by a number is equal to multiplying the reciprocal of this number.

The basis of solving equations:

1, shift term symbols: move some terms in the equation from one side to the other, add the previous symbols, and add, subtract, multiply and divide.

2. Basic properties of the equation.

Property 1: Add (or subtract) the same number or the same algebraic expression on both sides of the equation at the same time, and the result is still an equation. Represented by letters: if a=b, c is a number or an algebraic expression.

A+C = B+C. A-C = B-C.

Property 2: Both sides of the equation are multiplied or divided by the same number that is not 0 at the same time, and the result is still an equation.

Represented by letters: if a=b, c is a number or an algebraic expression (not 0). Then:

A×c=b×c or a/c=b/c

Property 3: If a=b, then b=a (symmetry of the equation).

Property 4: If a=b and b=c, then a=c (transitivity of the equation).