Answer:
-4 = z
Step-by-step explanation:
-8z + 4 = -9z
+8z +8z
4 = -z
4 ÷ -1 = -z ÷ -1
-4 = z
Answer:
z = −4
Step-by-step explanation:
Step 1: Add 9z to both sides.
−8z + 4 + 9z = −9z + 9z
z + 4 = 0
Step 2: Subtract 4 from both sides.
z + 4 − 4 = 0 − 4
z = −4
