Question

Solve the equation:

7x − 2 = 26

Answer 1

`\large \boxed{x = 4}`

Explanation:

Goal

• Solve for x-term.

Given

• Equation

`7x - 2 = 26`

Step 1

• Isolate x by adding 2 to both sides.

`7x - 2 + 2 = 26 + 2 \\ 7x + 0 = 28 \\ 7x = 28 \\ x = (28)/(7) \\ x = 4`

Step 2 (Optional)

• We check the answer by substituting x = 4 in the equation.

`7x - 2 = 26 \\ 7(4) - 2 = 26 \\ 28 - 2 = 26 \\ 26 = 26`

The equation is true for x = 4. Hence, the solution is x = 4.