Question

{ a = 7 | 2a - b = 10

Answer 1

Объяснение:

Решение системы в тетради

Answer 2

It seems like you've written an equation or a system of equations. However, you've only provided one equation, and it's missing some information. To solve for the variables in this system, I need at least one more equation.

Could you please provide the complete set of equations you're working with? This will help me assist you in solving for the variables a and b.