Answer:
<em>As addition property of equality clearly states that if we add the same number to both sides of an equation, the sides remain equal.</em>
Step-by-step explanation:
Add x in both sides (Addition Property of Equality)
Multiply both sides by 2
Subtract 2x in both sides
∵adding both equation
divide both sides by 4
Put the value of y = 6 to the equation
Subtract 6 from both sides
Change the sign
Keywords: <em>Addition property of equality, reason, proof</em>
<em>Learn more about operations from brainly.com/question/3474035</em>
#learnwithBrainly