Answer:
Step-by-step explanation:
The error occured where the distributive property was applied. 3 × -4 should give us -12 not +12.
Here's the correct way to solve the equation
3(x - 4) = -9
3x - 12 = -9 (distributive property)
3x - 12 + 12 = -9 + 12 (addition property of equality)
3x = 3
3x/3 = 3/3 (division property of equality)
x = 1
