Solve: x  6 = 12
Solve: x + 6 = 12
Solve: x/6 = 12
Solve: 6x = 12 Solve:  x = 12 Solve: 5x/6 = 12 Solve: 3 + 2x =  1 Solve: 3 + 2x = 4x  1 Solve: 3x + 4(x 1) = 2 Solve: 4x + 2  3x + 5  2(x + 5) = (2x  5) + (3x + 4) consecutive integer expressions, equations Solving Equation on Graphing Calculators Intro to Solving Linear Equations One Operation Equations More Than One Operation Equations Solve Linear Equation w/Many Operations Solutions to a Linear Equation & Solving Linear Equations Graphically Linear Equation Solver  The Page Does The Work 
To solve a linear equation with more than one operation, one must undo the operations in reverse of the order of order of operations.
As listed below, the topmost operation has priority when simplifying an expression. In solving an equation, the bottommost function generally must be undone first.
In the expression 3 + 2x, the x is first multiplied by 2, then 3 is added to the result.
Restated, 3 + 2x means, 1st: multiplied x by 2, 2nd: add 3 to the result.
To solve the equation 3 + 2x = 1, 1st: undo the addition, 2nd: undo the multiplication.
 How do you undo adding 3? SUBTRACT 3. How do you undo multiplying by 2? DIVIDE BY 2. 
How do you undo multliplying 4 by (x  1)? DISTRIBUTE THE 4*. How do you combine the 3x and the 4x? JUST COMBINE LIKE TERMS. How do you undo subtracting 4? ADD 4. How do you undo multiplying by 7? DIVIDE BY 7. 

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