Question

6x + 8y-2

6x + 15y = 21​

Answer 1

Answer:

Solve equation [2] for the variable y

[2] 15y = -6x + 2

[2] y = -2x/5 + 2/15

// Plug this in for variable y in equation [1]

[1] 6x - 15•(-2x/5+2/15) = -21

[1] 12x = -19

// Solve equation [1] for the variable x

[1] 12x = - 19

[1] x = - 19/12

// By now we know this much :

x = -19/12

y = -2x/5+2/15

// Use the x value to solve for y

y = -(2/5)(-19/12)+2/15 = 23/30