Question

What is the justification for step 3 in the solution process?0.8a -0.1 a= a - 2.5Step 1: 0.7a = a - 2.5Step 2: -0.3a = -2.5Step 3:a = 8.3O A.the subtraction property of equalityO B. combining like termsOC.the addition property of equalityOD.the division property of equality

Answer 1

In step 3, both terms of the equation of step 2 are divided by -0.3. Then, the answer is the division property of equality, which states that when we divide both sides of an equation by the same non-zero number, the two sides remain equal.