5+4x-x+2=(5+4x).(7+5x)
(5+2)+(4x-x)=(5+4x).(7+5x)
7+3x=(5+4x).(7+5x)
\(\Rightarrow\orbr{\begin{cases}5+4x=7+3x\\7+5x=7+3x\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}x=2\\x=0\end{cases}}\)
Vậy x=2 hoặc x=0
Các câu hỏi tương tự
giúp mình giải bài toán.......
1)3x-6=5x+2
2)15-x=4x-5
3)x-15=6+4x
4)-12+x=5x-20
5)7x-4=20+3x
6)5x-7=-21-2x
7)x+15=20-4x
8)17-x=7-6x
9)-4|x-2|=-8
10)-7|x+4|=2.(-7)
Tìm x
1) 5x - 16 = 40 + x
2) 4x - 10 = 15 - x
3) 3x - 6 = 5x + 2
4) 15 - x = 4x - 5
5) x - 15 = 6 + 4x
6) -12 + x = 5x - 20
7) 7x - 4 = 20 + 3x
8) 5x - 7 = -21 - 2x
9) x + 15 = 20 - 4x
10) 17 - x = 7 - 6x
tìm x,biết
5-x-16=40+x
4x-10=15-x
15-x=4x-5
x-15=6+4x
-12+x=5x-20
7x-4=20+3x
5x-7=-21-2x
x+15=20-4x
17-x=7-6x
a) -12+x=5x-20
b) 4x-10=15-x
c) 7x-4=20+3x
d) 3x-6=5x+2
e) 5x-7=-21-2x
f) 15-x=4x-5
g) x+15=20-4x
Tìm x (7-3x-2)(5x-3-4x)=4-5(1-x)
1,-15(x+2)+7(2x-3)
2,x^2+2x=0
3,(-2x)(-4x)+28=100
4,(2x-5)^2-49=0
5,/x-5/+/y-3/=1
6,3×(x-2)-6(x-5)=2(5-2x)
7, 5x ×(-x)^2+1=0
8,4x^3=4x
Giúp mình v
Bài10872917292872917 tìm x bt
5x-16=40+x
4x-10=15-x
-12+x=5x-2
7x-4=20+3x
5x-7=20+3x
x+15=7+6x
17-x=7-6x
3x+(-21)=12-8x
125:(3x-13)=25
541+(218-z)=735
3(2x+1)-19=14
175-5(x+3)=85
4x-40=|4|+12
x+15=20-4x
8x+|-3|=-4x+39
6(x-2)+(-2)=20-4x
1. Tim x1. (x - 3 ) 100- 1 02) ( 9 - 5x ) 2019 + 1 03) ( 4x - 3 ) 5 ( 2 - x ) 54 ) ( 2x - 9 ) 2 ( 5x - 6 ) 25 ) (11 - 4x ) 6 - ( 2 - 5x ) 6 06) ( x- 9 ) 9 (x - 9 ) 77) ( 5- 4x ) 12 ( 5 - 4x)88) ( 2019 - x ) 2018 ( 2019 - x ) 20169) ( x- 3 ) 3 x- 3
Đọc tiếp
1. Tim x
1. (x - 3 ) 100- 1 = 0
2) ( 9 - 5x ) 2019 + 1 = 0
3) ( 4x - 3 ) 5 = ( 2 - x ) 5
4 ) ( 2x - 9 ) 2 = ( 5x - 6 ) 2
5 ) (11 - 4x ) 6 - ( 2 - 5x ) 6 = 0
6) ( x- 9 ) 9 = (x - 9 ) 7
7) ( 5- 4x ) 12 = ( 5 - 4x)8
8) ( 2019 - x ) 2018 = ( 2019 - x ) 2016
9) ( x- 3 ) 3= x- 3
14 tháng 11 2023 lúc 19:13
Tìm STN x, biết
1) (x + 2) - 2 = 0 2) (x + 3) + 1 = 7
3) (3x - 4) + 4 = 12 4) (5x + 4) - 1 = 13
5) (4x - 8) - 3 = 5 6) 3 + (x - 5) = 7
7) 8 - (2x - 4) = 2 8) 7 + (5x + 2) = 14
9) 5 - (3x - 11) = 1 10) 16 - (8x + 2) = 6