2. It is known that the solution of the equation m(x- 1)=4x-m about x is -4, so the value of m is found. ..
3. If |2a- 1|+(b+2) is quadratic =0, find the solution of the equation ax-b= 1.
4. When x takes what value, the polynomial 5(x+2) is less than 2( 1-3x)?
5. Add 2 to a number, then multiply, subtract and finally divide by 2. The result is twice that of the original. What's this number?
6. When x is what number, the value of x+3- 1 in the algebraic expression is equal to the value of 2x+ 1 in the algebraic expression?
7. Equation X (square of a+8a-15) X = square of 2a +2a+ 12 has a solution X = 2. Find the value of a+ 1 in the square of a.
8. If the solution of equation 6+0-2x+3x+1 =1-42x+1is the same as that of equation x+3 6x-a=6 a-3x, find the value of a:1.
∴2m- 1= 1
∴m= 1
∴ (1m-3/2) 20 10 power = 1
2. Substitute x=4 into m (x-1) = 4x-m.
Solve,,,, (Do it yourself)
3.∫| 2a- 1 |+(b+2) Quadratic =0
∴2a- 1=0,b+2=0
∴a=、、b=、、
Substitute a and b,
4.5(x+2)-2( 1-3x)=-3
5.[(x+2)*2-2]/2=2x
6.3 x+3- 1=7 2x+ 1
7. Substitute x=2 into the square of (a+8a-15) x = 2a+2a+12.
Find the value of a and substitute it.
8. Find the value of x in 6+0-2x+3x+1=1-4x+1.
Then substitute the value of x into X+3x-A = a-3x of 6.
Hope to adopt evaluation