solve for x: 3x+4=7
3x+4=7
3x + 4 - 4 = 7 - 4
3x = 3
x = ?
when you want to solve for a variable you want your asnwer to look like x=? So you need to separate x from everything else. So the first thing to do would be to subtract 4 from 7. So you end up with 3x=3. Now we need X not 3X. So divide both sides by 3. Then we get x = 1
X= 3/3 (divide both sides by 3 to get rid of x's co-efficient)
x=1
To solve for x in the equation 3x + 4 = 7, we need to isolate the variable x on one side of the equation.
Step 1: Subtract 4 from both sides of the equation:
3x + 4 - 4 = 7 - 4
3x = 3
Step 2: Divide both sides of the equation by 3 to solve for x:
3x/3 = 3/3
x = 1
Therefore, the solution to the equation 3x + 4 = 7 is x = 1.