Equations Math Example 2

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Example 2

medium
Solve x4+3=7\frac{x}{4} + 3 = 7.

Solution

  1. 1
    Subtract 3 from both sides: x4=4\frac{x}{4} = 4.
  2. 2
    Multiply both sides by 4: x=16x = 16.
  3. 3
    Check: 164+3=4+3=7\frac{16}{4} + 3 = 4 + 3 = 7 ✓

Answer

x=16x = 16
Equations are like balanced scales. Whatever operation you perform on one side, you must perform on the other to maintain equality.

About Equations

A mathematical statement that two expressions are equal, connected by an equals sign (==). Equations assert a relationship between quantities and can be solved to find the values of unknown variables that make the statement true.

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More Equations Examples

Example 1 easy

Is [formula] a solution of [formula]?

Example 3 easy

Solve [formula].

Example 4 hard

Which of these is an equation and which is an expression? (a) [formula] (b) [formula]

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