1) Is 𝑥 = 4 a solution to the equation 𝑥 +7 =10? a) True b) False 2) Is 𝑥 = 7 a solution to the equation 2𝑥 =14? a) True b) False 3) Is 𝑥 = 8 a solution to the equation 𝑥 -6 =2? a) True b) False 4) Is 𝑥 = 5 a solution to the equation 6𝑥 =36? a) True b) False 5) Is 𝑥=15 a solution to the equation 𝑥 - 5 = 20? a) True b) False 6) Is 𝑥 = 5 a solution to the equation 2𝑥 - 2=12? a) True b) False 7) Is 𝑥 = 6 a solution to the equation 3𝑥 + 2 = 20? a) True b) False  8) Is 𝑥 = 1 a solution to the equation 5𝑥 + 6 = 11? a) True b) False 9) Is 𝑥 = 10 a solution to the equation 2𝑥 + 2 = 20? a) True b) False 10) Is 𝑥 = 4 a solution to the equation 6𝑥 - 4 = 28? a) True b) False 11) Is 𝑥 = 4 a solution to the equation 2(𝑥 - 4) = 0? a) True b) False 12) Is 𝑥 = 8 a solution to the equation 4(𝑥 + 2) = 20? a) True b) False

Solving Equations Using Substitution

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?