How to calculate the equation of 1 / 4-x minus 1 = 2 / 2 x + 1? It should not be difficult

How to calculate the equation of 1 / 4-x minus 1 = 2 / 2 x + 1? It should not be difficult

Question (1-x) / 4 - 1 = (x + 1) / 2, multiply both sides of the equation by 4
(1-x) - 4 = 2 * (1 + x) expansion without brackets
1-x-4 = 2 + 2x
-3x=5
x=-5/3

It is known that the solution of the equation about X is x = 2
It is known that the solution of the equation about X is x = 2, where a is not equal to 0. Find the value of the algebraic formula A / b minus B / A

(a-2)/2=(2b-3)/3
Double six on both sides
3a-6=4b-6
3a=4b
a/b=4/3
b/a=3/4
So a / B-B / A
=4/3-3/4
=7/12

Solving equation 0.2x minus 3.5 times 0.8 equals 1.2

0.2x-3.5(0.8)=1.2
0.2x-2.8=1.2
0.2x=4
x=20

176 degrees 52 minutes 3 equals

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