A. addition property and division property
In step 1, the addition property of equality is used to subtract 9 from both sides of the equation. In step 2, the division property of equality is used to divide both sides by 4.
Consider the following solution of 4x+9=45
Step 1: 4x+9=45
4x+9-9=45-9
4x=36
step 2: 4x/4 = 36/4
x=9
what properties of equality can justify the two steps in the solution?
A. addition property and division property
B. addition property and multiplication property
Subtraction property and division property
D.subtraction property and multiplication property
1 answer
1 answer