Solve 2x + 3 = 7
This is a one-step linear equation after the constant term is moved. The goal is to isolate x while performing the same operation on both sides.
Problem2x + 3 = 7
Show detailed solution
Answer: x = 2
Step 1: move the constant term
Subtract 3 from both sides so the variable term is by itself: 2x + 3 − 3 = 7 − 3, which gives 2x = 4.
Step 2: isolate x
Divide both sides by 2: 2x ÷ 2 = 4 ÷ 2. Therefore x = 2.
Step 3: check the answer
Substitute 2 into the original equation: 2(2) + 3 = 4 + 3 = 7. The left side equals the right side, so the solution is correct.