exam Maths Puzzle Numerical Ability

INDICATE WHETHER THE EQUATION HAS NO SOLUTION OR IS TRUE FOR ALL REAL NUMBERS. IF NIETHER IS THE CASE, SOLVE FOR THE VARIABLE.

10x-2(4+5x)=8

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exam Other Question

Vision-care
As a fringe benefit for its employees, a company establishes a vision-care plan. Under this plan, each year the company will pay the first $35 of an employee�s vision- Please help me solve this problem.The problem states: simplify and express final result with positive intergers as exponents: (4x^5y^-2)^3