Current location - Training Enrollment Network - Mathematics courses - Junior high school mathematics 100 fill in the blanks urgently, please attach the answer.
Junior high school mathematics 100 fill in the blanks urgently, please attach the answer.
1) true or false: judge whether the following equation is linear: ①-3x-6x2 = 7 () 35x+1-2x = 3x-2 () 43y-4 = 2y+1. () Judge whether the solution of the following equation is correct: ① Solve Equation 35. 0.5x=- 1, x=-2 ③ Solve the equation 5x+ 15-2x-2 = 10, 3x =-3, x =-1; ④ Solve equation 2x-4+5-5x =- 1, -3x =-2, x =. () 2) Fill in the blanks: (1) If 2(3-a)x-4=5 is a linear equation about x, then a≦_ (. Then the value of integer A is _ (3) the solution of equation 5x-2(x- 1)= 17 is _ (4)x=2 is the solution of equation 2x-3=m-, then m=_. (5) If-2x2-5m+ 1。 The solution of the equation is 0. (8) If a≠0 is known, the solution of equation 3ab-(a+b)x=(a-b)x is _ _ _ _. 3) Multiple choice question: (1) The solution of equation ax=b is (). A: There is a solution. The simpler thing is () A. Multiply both sides of the equation by 4 to get 3 (x-1) =12 b. Remove the brackets to get x-= 3 c. Divide both sides together to get x-1= 4 d. Finishing, (3) Equation 2-() A.2-2 (2x-4) =-(x-7) B.12-2 (2x-4) =-x-7c.12-2 (2a.12. A.4x+2 = 2x-(-2-9) b.2 {3 [4 (5x-1) X. (2) When y is equal to what number, the value of the algebraic expression is 3 less than that of the algebraic expression? (3) When m is equal to what number, the sum of the value of algebraic expression 2m- and the value of algebraic expression is equal to 5? (4) Solve the following equation about X: ① AX+B = BX+A; (a≠b); 3. Evaluation between simplification: 1, -9(x-2)-y(x-5) (1) simplifies the whole formula. (2) when x=5, find the solution of y.2,5 (9+a) × b-5. Find the value of the formula. 3. 62g+62(g+b)-b (1) simplifies the whole formula. (2) When g=5/7, find the solution of B.4,3 (x+y)-5 (4+x)+2 y (1) and simplify the whole equation 5, (x+y)(x-y) (1) and simplify the whole equation. (1) simplifies the whole equation 9, (2.5+x)(5.2+y) (1) simplifies the whole equation 10, 9.77x-(5-a)x+2a (1) simplifies the whole equation. B= 1 Substitute the following formula to find 3 (x+2)-2 (x-3) 5 (5+a) × b-5 (5+b) × a 62a+62 (a+b)-b 3 (x+y)-5 (4+x)+20.