(- 12 ) 2 . x = 56 + 10 . 13x
help me
(-12)^2.x=56-[(-10).13.x]
(-12)2.x=56-[(-10).13.x)
(-12)2.x=56-[(-10).13.x]
(-12)2.x=56-[-10.13.x]
144.x=56-[-130x]
144x=56+130x
144x-130x=56
14x=56
x=56:14
x=4
Vậy x=4
Tìm x: (-12)2 . x = 56 + 10 . 13 . x
(-12)2 . x = 56 + 10 . 13 . x
=> 144 . x = 56+130 .x
=> 144x - 130x = 56
=>14x =56
=>4
(-12)2.x=56+10.13.x
=> 144.x=56+130.x
=> 144x-130x=56
=> x(144-130)=56
=> 14x=56
=> x=4
<=> 144 . x = 56 + 10 . 13x
<=> 144x = 56 + 130x
<=> 144x - 130x = 56
<=> 14x = 56
=> x = 56 : 14 = 4
Vậy x = 4
đúng 100%
(-12)2 . x = 56 + 10 . 13 . x
(-12)2 . x = 56 + 10 . 13 . x
144.x=56+130.x
144.x-130.x=56
(144-130).x=56
14.x=56
x=56:14
x=4
Vậy x=4
Mình mất công làm nhiều thế này , nhé
(-12)2 . x = 56 +1 0 . 13 . x
144 . x = 56 + 130 . x
144 . x - 130 . x = 56
14 . x = 56
x = 56 : 14
vậy x = 4
(-12)2 . x = 56 + 10 . 13 . x
144.x=56+130.x
144.x-130.x=56
(144-130).x=56
14.x=56
x=56:14
x=4
Vậy x=4
(-12)2.x=56+10.x
xin lỗi mik viết sai đề
sửa lại: (-12)2 . x = 56+ 10.13.x
Tìm x thuộc Z, biết:
a, 8x . ( 2023 + x ) - 8x . ( x + 2024 ) = 56
b, 5 - 2025x = 9 - 2026 . ( x - 1 )
c, ( - 12 ) mũ 2 . x = 56 + 10 . 13x
d, - ( x - 32 + 11 ) = ( 21 - 33 - x + 7 )
e, - 2 . ( x + 6 ) + 6 . ( x + 10 ) = 8
Tìm x:
(-12)mũ 2 . x = 56 + 10 . 13 . x
-12^2.x=56+10.13.x
<=>144x=56+130x
<=>144x-130x=56
<=>14x=56
<=>x=4
Vậy x=4
(-12)2.x=56+10.13.x
144x=56+130x
144x-130x=56
14x=56
X=4
Vay.......
(-12) 2 . x = 56 + 10 . 13 . x
144x = 56 + 130x
144x - 130x = 56
14x = 56
=> x = 56 : 14
=> x = 4
(-12)2.x = 56 + 10 . 13 . x
tìm x
\(\left(-12\right)^2.x=56+10.13.x\)
\(144x=130x+56\)
\(144x-130x=56\)
\(14x=56\)
\(x=4\)