Question

How do I solve 4(x+3)-(x-1)=40

Answer 1

The answer is: x = 9

Here's how I got my answer:

Step 1: Simplify the brackets. Which leaves us with $4(x+3)-x+1=40$

Step 2: Expand it. Which leaves us with $4x+12-x+1=40$

Step 3: Simplify $4x+12-x+1$ to $3x+13$. Which leaves us with $3x+13=40$

Step 4: Subtract 13 from both sides. Which leaves us with $3x=40-13$

Step 5: Simplify $40-13$ to 27. Which leaves us with $3x = 27$

Step 6: Divide both sides by 3, leaving us with our answer, x = 9.

Answer 2

$4(x+3)-(x-1)=40\\\\ 4x+12-x+1=40\\\\ 3x=27\\\\ x=9$