tìm x
(x-36):17=12
(x-47)-224=0
315+(178-x)=401
(6x-39):3=201
128-3.(x+4)=23
tìm x (x-36):17=12 (x-47)-224=0 315+(178-x)=401 (6x-39):3=201 128-3.(x+4)=23
By aihong
By aihong
tìm x
(x-36):17=12
(x-47)-224=0
315+(178-x)=401
(6x-39):3=201
128-3.(x+4)=23
(x-36):17=12
x-36 = 12 x 17
x-36 = 204
x = 204 + 36
x = 240
(x-47)-224=0
x-47 = 0 + 224
x-47 = 224
x = 224 + 47
x = 271
315+(178-x)=401
178 – x = 401 – 315
178- x = 86
x = 178 – 86
x = 92
(6x-39):3=201
6x – 39 = 201 x 3
6x – 39 = 603
6x = 603 + 39
6x = 642
x = 642 : 6
x = 107
128-3.(x+4)=23
3.(x+4) = 128 – 23
3.(x+4) = 105
x+4 = 105 : 3
x+4 = 35
x = 35- 4
x = 31
Đáp án:
Giải thích các bước giải:
a, (x-36):17=12
x – 36 = 204
x = 240
b, (x-47)-224=0
x – 47= 224
x = 291
c, 315+(178-x)=401
178 – x = 86
x = 92
d, (6x-39):3=201
6x – 39 = 603
6x = 642
x = 107
e, 128-3.(x+4)=23
3.(x+4) = 105
x+4 = 35
x = 31