What is the justification for each step in the solution of the equation?
2 answers:
4(4x + 6) - 7 = 77 - 4x......distribute thru the parenthesis
16x + 24 - 7 = 77 - 4x ...simplify
16x + 17 = 77 - 4x ...addition property of equality....add 4x to both sides
16x + 4x + 17 = 77 ...subtraction property ...subtract 17 from both sides
16x + 4x = 77 - 17...combine like terms
20x = 60 ....division property....divide both sides by 20
x = 60/20
x = 3
Answer:
Step-by-step explanation:
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12 is 20% of 60 because 12/60 = 0.2.
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60
Step-by-step explanation:
Answer:
A) Factor
Step-by-step explanation:
The answer is 21, because if you multiply 21 times 3 you get 63
