Question

Solve the system using substitution? 4y + 19 = x 3y - x = -13

please show steps. :)- Thank you!!!!!!!!!!!

Answer 1

Solve the sysem using substitution? 4y + 19 = x, 3y - x = -13 Given equations is: 4y + 19 = x, 3y - x = -13 x = 4y + 19 x value substitute this equation is 3y - x = -13 3y - (4y + 19) = -13 3y -4y -19 = -13 -y -19 = -13 Add 13 to each side -y -19 +13=-13+13 -y - 6 = 0 Add y each side y - y - 6 = y y = -6 x = 4y + 19 Substitute y = -6 in equation x = 4y + 19 x = 4(-6) + 19     = -24 + 19     = -5 There fore x = -5, y = -6