y = x - 4-2x + y = 18Use elimination pls

Answer:x = -22 , y = -26Step-by-step explanation:Solve the following system: {y = x - 4 | (equation 1) y - 2 x = 18 | (equation 2) Express the system in standard form: {-x + y = -4 | (equation 1) -(2 x) + y = 18 | (equation 2) Swap equation 1 with equation 2: {-(2 x) + y = 18 | (equation 1) -x + y = -4 | (equation 2) Subtract 1/2 × (equation 1) from equation 2: {-(2 x) + y = 18 | (equation 1) 0 x+y/2 = -13 | (equation 2) Multiply equation 2 by 2: {-(2 x) + y = 18 | (equation 1) 0 x+y = -26 | (equation 2) Subtract equation 2 from equation 1: {-(2 x)+0 y = 44 | (equation 1) 0 x+y = -26 | (equation 2) Divide equation 1 by -2: {x+0 y = -22 | (equation 1) 0 x+y = -26 | (equation 2) Collect results: Answer: {x = -22 , y = -26