(4x - 24 ) .73 = 2.74
4x - 24 = (74:73) . 2
4x - 16 = 7 . 2
4x - 16 = 14
4x = 14 + 16 = 30
x = 30:4 = \(\frac{15}{2}\)
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(4x - 24 ) .73 = 2.74
4x - 24 = (74:73) . 2
4x - 16 = 7 . 2
4x - 16 = 14
4x = 14 + 16 = 30
x = 30:4 = \(\frac{15}{2}\)
tìm x biết:
a) 6.x-5=743:741
b) 70-5.(x-3)=45
c) (3.x+24) .73=2.74
d) 4x - 40=|-8|
Bài 2. Tìm x biết:
a, 128 - 3(x + 4) = 23 d, 720 : [41 - (2x - 5)] = 2 3 .5
b, [(4x + 28).3 + 55] : 5 = 35 e, 123 – 5.( x + 4 ) = 38
c, (12x - 4 3 ).8 3 = 4.8 4 g, ( 3x – 2 4 ) .7 3 = 2.7 4
e, (3x–2⁴).7³=2.7⁴
(3x-2⁴).7³=2.7⁴
A=59/10:3/2-(7/3.9/2-2.7/3)7/3
(3x - 2^4).7^5=2.7^6
(3x - 2^4) - 7^3 = 2.7^4
Tìm x biết
219-7 ( x+1 ) = 10²
( 3x - 2⁴ ) . 7³ = 2.7⁴
Tìm x biết
219-7 ( x+1 ) = 10²
( 3x - 2⁴ ) . 7³ = 2.7⁴