Answer: 26 :))
Step-by-step explanation: 20 + 2a = 8 + 6a flip terms than subtract 20 from both sides, simplify to 2a = 6a - 12, subtract 6a from both sides, simply and CLT and you have -4a = -12, divide both sides by -4 and you have 3 = a so plug it in to the equation and you have 26 = YZ
