Answer:
x = 32.5
Step-by-step explanation:
12 + 2x −1 = 4
2x −1 + 12 = 4
Step 1: Add -12 to both sides.
2x − 1 + 12 + −12 = 4 + −12
2x −1 = −8
Step 2: Solve Square Root.
2x − 1 = −8
2x − 1 = (−8)^2 (Square both sides)
2x − 1 = 64
2x − 1 + 1 = 64+1 (Add 1 to both sides)
2x=65
2x/2 = 65/2 (Divide both sides by 2)
x = 65/2
x = 32.5
