Question

Verona is solving the equation -3+4x=9. In order to isolate the variable term using the subtraction property of equality, which number should she subtract from both sides of the equation.
A: -4
B: -3
C: 3
D: 4

Answer 1

-3+4x=9  subtract -3 from both sides 
4x=12    
x= 3 

So the answer is B: -3

Answer 2

B. -3
Because -3 - (-3) = 0