Solving 3x + 2 = 8
In this Instructible, I will show you how to solve the equation 3x + 2 = 8.
Step 1: Subtract
The first step is to subtract 2 from both sides of the equal sign:
3x + 2 = 8
-2 -2
Which leaves us:
3x = 6
3x + 2 = 8
-2 -2
Which leaves us:
3x = 6
Step 2: Divide
In Step 2, we divide both sides by the coefficient in front of x:
3x = 6
/3 /3
Which gives us:
x = 2
3x = 6
/3 /3
Which gives us:
x = 2
Step 3: Check Your Solution
In the final step, we will check our solution by plugging our answer back in to the original equation:
3(2) + 2 = 8
We simplify this according to PEMDAS
6 + 2 = 8
8 = 8
Since we get the same number on both sides, we know the solution x = 2 is correct!
3(2) + 2 = 8
We simplify this according to PEMDAS
6 + 2 = 8
8 = 8
Since we get the same number on both sides, we know the solution x = 2 is correct!