Step 1 :Step 1: Subtract \(3x\) from both sides to isolate \(x\) on one side of the equation: \( -5 = x + 7 \)
Step 2 :Step 2: Subtract \(7\) from both sides to isolate \(x\): \( -5 - 7 = x \)
Step 3 :Step 3: Simplify the left side: \( -12 = x \)