Respuesta :
Hello,
adrianaramirez7,
Let's solve for a.7a−2b=5a−bStep 1: Add -5a to both sides.7a−2b+−5a=5a−b+−5a2a−2b=−bStep 2: Add 2b to both sides.2a−2b+2b=−b+2b2a=bStep 3: Divide both sides by 2.2a/2=b/2a=12bAnswer:a=1/2b