Mathematics, 20.11.2020 17:40 xeno777

Alice was trying to solve the equation 4x + 21 = 7x -12. In one of her steps Alice thinks she made a mistake and got the wrong answer. If she made a mistake, what step did Alice make a mistake? Step 1: 4x + 21 = 7x -12 Rewrite the equation Step 2: 4x -7x +21 = 7x -7x -12 Inverse Operation Step 3: -3x +21 -21 = -12 +21 Inverse Operation Step 4: -3x = 9 Solve with Inverse Operation Step 5: x = -3

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:00, yyyyyyyyy8938

Sienna planned a trapezoid-shaped garden, as shown in the drawing below. she decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. which expression finds the change in the scale factor?

Answers: 1

continue

Mathematics, 21.06.2019 15:30, adriana145

Jonah runs 3/5 miles on sunday and 7/10 mile on monday. he uses the model to find that he can ran a total of 1 mile . what mistake does jonah make

Answers: 2

continue

Mathematics, 21.06.2019 17:00, kaitlyn114433

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Answers: 1

continue

Mathematics, 21.06.2019 18:10, TrueMonster8911

What is the equation in slope-intercept form of the linear function represented by the table? y -18 -1 -8 4 2 912 o y=-2x-6 o y=-2x+6 o y=2x-6 o y = 2x+6

Answers: 1

continue

You know the right answer?

Alice was trying to solve the equation 4x + 21 = 7x -12. In one of her steps Alice thinks she made a...