a) \(\left(x+74\right)-310=200\)
\(x+74=200+310\)
\(x+74=510\)
\(x=510-74\)
\(x=436\)
b) \(3636:\left(12\cdot x-91\right)=36\)
\(12\cdot x-91=3636:36\)
\(12\cdot x-91=101\)
\(12\cdot x=101+91\)
\(12\cdot x=192\)
\(x=192:12\)
\(x=16\)
Vậy ....
( x+74)-310=200
x+74=200+310
x+74=510
x=510-74
x=436
3636:(12× X -91)=36
12× X -91=3636:36
12× X-91=101
12× X=101+91
12× X=192
X=192:12
X=16
(x+74)-310=200
x+74 = 200 + 310= 510
x =510 - 74
x =436
mình làm 1 bài thôi nha
k cho mình nha bạn!!!^_<
( x + 74 ) - 310 = 200
x + 74 = 200 + 310
x + 74 = 510
x = 510 - 74
x = 436
3636 : ( 12 * x - 91 ) = 36
12 * x - 91 = 3636 : 36
12 * x - 91 = 101
12 * x = 101 + 91
12 * x = 192
x = 192 : 12
x = 16
Dấu " * " là nhân nha
Chúc bn hk tốt !
(x + 74) - 310 = 200
=> x + 74 = 200 + 310
=> x + 74 = 510
=> x = 510 - 74
=> x = 436
Vậy x = 436
3636 : (12x - 91) = 36
=> 12x - 91 = 3636 : 36
=> 12x - 91 = 101
=> 12x = 101 + 91
=> 12x = 192
=> x = 192 : 12
=> x = 16
Vậy x = 16
(x + 74) - 310 = 200
=> x + 74 = 200 + 310
=> x + 74 = 510
=> x = 510 - 74
=> x = 436
Vậy x = 436
3636 : (12x - 91) = 36
=> 12x - 91 = 3636 : 36
=> 12x - 91 = 101
=> 12x = 101 + 91
=> 12x = 192
=> x = 192 : 12
=> x = 16