Question

a. When solving the system of linear equations 6x+y = 1 and 7x+2y = -3 with substitution, it is easiest to first solve the equation _6x+y=1_for_y_. When this is done, -y_ is equal to _6x+1

b. What is the solution to the system of linear equations in part a?

I need help with b​

Answer 1

Answer:

6x + y = 1

y = 1 - 6x

7x + 2(1 - 6x) = -3 substitute 1 - 6x in for y

7x + 2 - 12x = -3 combine like terms

2 - 5x = -3 subtract 2 from both sides

-5x = -5 divide by -5

x = 1