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The solution of the equation x + 5 / 12 x = 5.1
X + 5 / 12 x = 5.1
17x of 12 = 5.1
X = 5.1 * 12 / 17
x=3.6
It is known that the solution of the equation 5x-2m = 4 (x-1) + 1 about X is 4 larger than that of the equation 2 (x + 1) - M = X-2 (m-2) about X, and the value of M is obtained
The solution of ∵ 5x-2m = 4 (x-1) + 1 5x-2m = 4x-4 + 1 ∵ x = 2m-3, that is, the solution of 5x-2m = 4 (x-1) + 1 is 2m-3 ∵ 2 (x + 1) - M = X-2 (m-2) 2x + 2-m = x-2m + 4 ∵ x = 2-m, that is, the solution of 2 (x + 1) - M = X-2 (m-2) is 2-m ∵ the solution ratio of equation 5x-2m = 4 (x-1) + 1 is 2-m ?
It is known that the solution of the equation 5x-2m = 6 about X is x = m, then the value of M is
The solution of 5x-2m = 6 is x = M
So to know the value of X, just take x = m in
5m-2m=6
3m=6
m=2
So the value of M is 2
If the solution of the equation 5x-a = 0 about X is 2 smaller than that of the equation 3Y + a = 0 about y, then the value of a is ()
A. 154B. -154C. 415D. -415
∵ 5x-a = 0, ∵ x = A5, ∵ 3Y + a = 0, ∵ y = - A3, ∵ - a3-a5 = 2, the denominator is removed to get: - 5a-3a = 30, the combination is: - 8A = 30, the solution is a = - 154
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