Answer:
z = -2
Step-by-step explanation:
Let's solve your equation step-by-step.
17=−7z+3
Step 1: Flip the equation.
−7z+3=17
Step 2: Subtract 3 from both sides.
−7z+3−3=17−3
−7z=14
Step 3: Divide both sides by -7.
−7z−7=14−7