\(\Leftrightarrow x-45:-15-10x=3\)
\(\Rightarrow x=0\)
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Tim x biet
A/70-5(x-3)=45
B/5^2x-3 - 2×5^2=5^2×3
tim x la so nguyen;
a) -45: 5 *(-3 - 2x ) =3
b) -2 * (x + 6 ) + (6x - 10) = 10
c) (x- 2) * (2016 + 2x ) = 0
b2: Tim x biet
a) 70-5.(9-3)=45
b)10+2x=4^5:4
Tim so tu nhien x biet
5 × ( 7 + 48 : x ) = 45
52x-3 - 2 × 52 = 52 × 3
tim x
a, 70-5.(x-3)=45
b, 2x-138=8.9
c, 10+2n=16
d, [(4x+28).3+55]:5=35
tim x :
a) ( x - 15 ) : 3 = 19
b) ( 5x - 45 ) x 15 = 450
c) 187 - 3( x + 4 ) = 34
d) 9x - 45 = 3^7 : 3^5
e ) ( 12x - 4^3 ) x 8^3 = 4 x 8^4
f ) x^2 = 4 , x^3 = 27
g ) ( x + 1 )^2 = 4
h ) ( 2x - 1 )^2 = 25
k ) ( 2x - 1 )^5 = 243
giup mik nhanh nhat co the nha
bai 1 tim x biet
a)x-43+7=49-(50+3)
b)-(x-16)+70=45
bai2 tim x biet
a)2x-(-60)=3x-18
b)-45-5x=10-4x
Tim x , y thuoc N a)x.y=24 va x<y b) (x+3).(y-2) =45 c) (2x+1) . (y-7)=150 d)2x-xy-3y=1
3022x-6+45=46
Tim so tu nhien x biet
(x+1)+(x+2)+(x+3)+....+(x+100)=5950