Question

3(x+4)=7x
Solving linear equations

Answer 1

• 3(x+4)=7x
• 3x+12=7x
• 7x=3x+12
• 7x-3x=12
• 4x=12
• x=12/4
• x=3

Answer 2

x = 3

Explanation:

To solve this equation, we can use basic algebraic techniques as illustrated.

3(x + 4) = 7x Distribute the 3.

3x + 12 = 7x Subtract 3x from both sides of the equation.

12 = 4x Rearrange the equation so the variables are on the left.

4x = 12 Divide by 4 on both sides of the equation.

x = 3