Solution equation (x-1) / 4 = (3x-1) / 8 + 1)

Solution equation (x-1) / 4 = (3x-1) / 8 + 1)

The original equation can be reduced to:
2（X-1）=3X+8
2X-2=3X+7
X=-9

X + 3x + (3x multiplied by 1 / 2) = 135 to solve the equation

x+3x+(3×1/2)=135
x+3x+3/2=135
2x+6x+3=135
8x=132
x=16.5

Solution equation: 2 (x ^ 2-5) + 5 = 3x

The key to this problem is to learn the splitting method
Through sorting, we can get 2x & sup2; - 3x-5 = 0
Observe the relationship of 2 / 3 / 5 2x - 5
x 1
The cross product is 2x-5x = - 3x, which is equal to - 3x
So the factorization method can be used to get (x + 1) (2x-5) = 0
At least one of the two factors is zero
So X1 = - 1, X2 = 5 / 2