\(2x+13=x-4\Leftrightarrow2x-x=-4-13\Leftrightarrow x=-17\)
\(2x+13=x-4\Leftrightarrow2x-x=-4-13\Leftrightarrow x=-17\)
Bài 13: Tìm x biết: a) (x-2)(x-3)-D0. b) (x-3)(x-4)-0. c) (x-7)(6-x)=0. d) (x-3)(x-13)=0. The Bài 14: Tìm x biết: a) (12-x)(2-x)=0. b) (x-33)(11-x)=0. c) (21-x)(12-x)=0. d) (50-x)(x-150) =0. Bài 15: Tìm x biết: a) 2x +x = 45. b) 2x +7x = 918. c) 2x+3x 60+5. d) 11x+22x 33.2.
tìm x
a)(x+1)+(x-3)=x-2
b)-(1-x)-(2x-3)=4-2x
c)-13-(5-x+6)+2x=3
Tìm x
a) (5-x) -(35-2x)=-8 -(-100)
b) 15- (x+4 -13)= 2-( 2x-49)
tìm số nguyên x
5/x+1+4/x+1=3/-13
-x+2+2x+3+x+1/4+2x+1/6=8/3
3/2x+1+10/4x+2-6/6x+2=12/26
giúp mình mik đang vội]
1,Tìm x
5^x-5^x+2=650
2x-3/11+2x-4/12+2x-5/13=2x-6/14+2x-7/15+2x-8/6
tìm x :
-4(2x+9)-(-8x+3)-x+13
tìm x :
-4(2x + 9) - ( -8x + 3) = x - 13
Tìm x biết 4.(x-2)-3.(2x+5)=-13
Tìm x, biết : (2x-3)-(x+7-13)=4