Solving Two-Step Equations All Operations

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides

• Add the 2a and a 

• Distribute 4 to a and -5

• Distribute -4 to a and -5

-15 = 5a +12- 2a + 6

• -11

• -3

• 10

• 7

Solve:
3(3x - 6) = 18

• x = 4

• x = -4

• no solution

• infinite solutions

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations

• math

• variable

• PEMDAS

• x=3

• x=2

• x=-2

• x=1

• m=3

• m=-4

• m=-1

• All real numbers

Mathematical Equivalence

ON

• x=3

• x=-7

• x=0

• No Solution

• 2

• -2

• 8

• 8

• 0

• 1

• -1

• 4