exam Maths Puzzle Numerical Ability

The diagonal brace on a rectangular gate forms an angle with the horizontal side with degree x and an angle with the vertical side with degree measure 2x-3. Find x.
How do I dolve this.

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exam Other Question
5-2x=3x-7x+25

5(d+4)=7(d-2)

3g-3=3(7-g)




I really just dont understand equation with both sides. So explain CLEARLY please. Divide Following rational expressions :

1- 25xy^2 / 7z divided by 5x^2y^2 / 14z^2 numerator / denominator


2- x^2-12x+32 / x^2-6x-16 divided by x^2-x-12 / x^2-5