(10-4x)+120:23=17
(10-4x)+120:8=17
(10-4x)+15=17
10-4x=17-15
10-4x=2
4x=10-2
4x=8
x=8:4
x=2
(10 - 4x) + 120 : 23 = 17
( 10 - 4x) + 15 = 17
10 + 15 - 17 = 4x
=> x = 2
Vậy...
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tìm x biết:a, 72.5-(2x+1)=630:9 b, (10-4x)+120:23=17
Tìm x:
a, 52x-3-2.52=52.3
b, 740:(x+10)=102-2.13
c, 65-4x+2=20140
d, 120+2.(3x-17)=214
e, 41-2x+1=9
(10-4x)+120 : 2^3=17
1. Tìm x biết
a. 8x +56 : 14 = 60
b. 52x-3- 2.52 = 52 . 3
c. 41- 2x+1=9
d.32x-4-x0= 8
g) 65-4x+2=20140
i. 120+ 2.(4x-17) =214
tìm x : a. (10-4x )+120:8 b. 2/15-x=3/10
Tìm x ∈ N, biết (10 – 4x) + 120 : 23 = 1 + 42
Tìm x:
a) 2^x+70=74
b)120-4x:2=80
c)(3x+5)^2=400
d)5(x+7)^3=135
e)600-{100-[60+(x^3+10)]}=518
g){[(16x-30).8]+80}:5=224
Tìm x, biết:
a) 72.5–(2x+1)=630:972.5–(2x+1)=630:9
b) (10–4x)+120:23=17
tìm x
( 10 - 4x) + 120 : 23 = 12 + 42
