Solve for Unknown Variable

7x-2=12

• 2

• 4

• 7

• 12

To solve an equation, the goal is to __________ the variable on one side.

• Evaluate

• Leviate

• Isolate

• Reciprocate

Solve for x:
2x + 5 = 12

• 7

• 3

• 3.5

• 8.5

Solve for x: 
4x + 1 = 7x - 5

• -1

• 2

• 6/11

• 8

Solve for x:
2(3x + 4) + 2 = 4 + 3x

• 2

• -2/3

• 10

• -2

Solve for x:
7 - 2(10x + 1) = 25

• 2/5

• 2

• 1

• -1

Solve for x:
5 + 3x = 8x - 15

• 10

• 4

• 2

• 20/11

Solve for x:
3(5x + 10) + 10 = 6x - (x + 10)

• 3

• -3

• -5

• 5

A letter or symbol that represents an unknown value is called ______________.

• Variable

• Radicand

• Coefficient

• Constant

d = rt, solve for r

• r = dt

• r = d/t

• r = d - t

• r = d + t