Linear Equation
Solve 2x + 7 = 15
Answer
x = 4
Working
Collect the x terms
Move every term containing x to one side and every number to the other. That gives 2x = 8.
Divide both sides
Divide both sides by 2 to isolate x.
Read off the solution
So x = 4.
Equations
| Expression | Result |
|---|---|
| x = 8 / 2 | 4 |
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