Solve the system by substitution.
3x + y = 19
-6x – 5 = y

A graph can be used to show the solution for a system of two linear equations. ... You solve one equation for one variable and then substitute this expression into ... Problem. Solve for x and y. y = 3x + 6. −2x + 4y = 4. y = 3x + 6. −2x + 4y = 4 ... x = 5. Simplify and solve the equation for x. 3x + y = 19. 3(5) + y = 19. 15 + y = 19.

Step-by-step explanation:

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743