x=2 because
Step 1: Simplify both sides of the equation.7x−(2x−5)=12x−3−3x7x+−1(2x−5)=12x−3−3x(Distribute the Negative Sign)7x+−1(2x)+(−1)(−5)=12x−3−3x7x+−2x+5=12x−3−3x7x+−2x+5=12x+−3+−3x(7x+−2x)+(5)=(12x+−3x)+(−3)(Combine Like Terms)5x+5=9x+−35x+5=9x−3Step 2: Subtract 9x from both sides.5x+5−9x=9x−3−9x−4x+5=−3Step 3: Subtract 5 from both sides.−4x+5−5=−3−5−4x=−8Step 4: Divide both sides by -4.−4x /−4 = −8/−4 x=2