Problem2x+3=72x + 3 = 72x+3=7Step-by-step solution等式兩邊同減 333 以分離 xxx 項:2x=7−3=42x = 7 - 3 = 42x=7−3=4。等式兩邊同除以 222:x=42x = \frac{4}{2}x=24。化簡:x=2x = 2x=2。Answerx=2x = 2x=2Want to solve a different problem? Open the linear solver →Related worked examples/solve/algebra/5x-minus-10-equals-15