linear equations, order of operations

7 + (12-3)²

• 256
• 88
• 10
• 13

Which operation would you do first?
( 12 + 10) ÷ 10 · 14 - 6

• Division
• Multiplication
• Addition
• Subtraction

Find and explain the error.

5 - 3 + 2

5 - 5

0

• There is no error.

• Addition was done first and you should have subtracted first

• There is a subtraction error

• 3 must to be multiply by -1 then add and subtract

Solve the following:
(2 + 7 - 1) ÷ 2²

• 16
• 2
• 72.25
• 8.75

Solve:
7x - 3x - 8 = 24

• 8
• -8
• 3.2
• 4

Solve:
3(x - 2) = 18

• 6.7
• 4
• 8
• -4

Solve:
7x + 19 = -2x + 55

• 4
• 14.8
• 8.2
• -4

Solve for x: 
4x + 1 = 7x - 5

• -1
• 2
• 6/11
• 8

Solve for x:
6(2x + 1) = 18

• 3
• 17/12
• 1
• 2

Which expression is equivalent to:
d + d + d + 3 + 2

• 3d + 5
• d + 5
• 2d + 7
• 3d + 4