book Maths Puzzle Numerical Ability

Hi
I have a quadratic equation that I'm unsure how to solve. COuld you please help me solve it? Thanks
Find all the solutions of the equation and check your solutions in the orig

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book Other Question

5x+8=4x+2
3x-(-2x+6)=4(x-4)+x
what do i do to disstrebuet a neg like 7x-2(x-4y)what do i do for frac x frac