Question

What is the solution to {4x - y = 8 {6x + y = 2

Answer 1

$4x - y = 8 \\ + 6x + y = 2 \\ = = = = = = = = \\ 10x = 10 \\ 10 \div 10 = 1 \\ x = 1 \\ \\ \\ 6x + y = 2 \\ 6(1) + y = 2 \\ 6 + y = 2 \\y = 2 - 6 \\ y = - 4 \\ \\ \\ \\ check \\ \\ 6x + y = 2 \\ 6(1) + y( - 4) = 2 \\ 6 - 4 = 2 \\ 2 = 2$