13.
(01.07 mc)
which table best represents the steps to solve the equation 8 + x over 3 = 4? (5 points)
step justification
step 1: x over 3= 4 + 8 the same number +8 can be added to both sides of the equation
step 2: x over 3 = 12 adding 8 and 4 on the right hand side
step 3: x = 12 ⋅ 3 the same number 3 can be multiplied on both sides of the equation
step 4: x = 36 multiplying 12 and 3 on the right hand side
step justification
step 1 x over 3 = 4 − 8 the same number −8 can be added to both sides of the equation
step 2: x over 3 = −4 adding −8 and 4 on the right hand side
step 3: x = −4 ⋅ 3 the same number 3 can be multiplied on both sides of the equation
step 4: x = −12 multiplying −4 and 3 on the right hand side
step justification
step 1: x over 3 = 4 − 8 the same number − 8 can be added to both sides of the equation
step 2: x over 3= −4 adding 4 and −8 on the right hand side
step 3: x = − 4 − 3 the same number 3 can be subtracted from both sides of the equation
step 4: x = −7 simplifying −4 −3
step justification
step 1: x over 3 = 4 − 8 the same number − 8 can be added to both sides of the equation
step 2: x over 3= −4 adding 4 and −8 on the right hand side
step 3: x = − 4 − 3 the same number 3 can be subtracted from both sides of the equation
step 4: x = −7 simplifying −4 −3