3+5=2+9 
3x+5=2x+93x+5=2x+9 
Solve 
1 
Subtract 
5 
55 
 from both sides of the equation 
3+5=2+9 
3+5−5=2+9−5 
2 
Simplify 
Subtract the numbers 
Subtract the numbers 
3=2+4 
3 
Subtract 
2 
2x2x 
 from both sides of the equation 
3=2+4 
3−2=2+4−2 
4 
Simplify 
Combine like terms 
Multiply by 1 
Combine like terms 
=4 
Solution 
=4