Answer:
B?
Step-by-step explanation:
Just guessed.
Do distributive property to get rid of the parenthesis
3x + 3 = -2x + 2 + 6
combine like terms
3x + 3 = -2x + 8
move the -2x over by addition
5x + 3 = 8
move the 3 over by subtraction
5x = 5
now divide by 5
x = 1
Answer:
See Explanation
Step-by-step explanation:
(a) Proof: Product of two rational numbers
Using direct proofs.
Let the two rational numbers be A and B.
Such that:


The product:




Proved, because 1/3 is rational
(b) Proof: Quotient of a rational number and a non-zero rational number
Using direct proofs.
Let the two rational numbers be A and B.
Such that:


The quotient:

Express as product



Proved, because 3/4 is rational
(c) x + y is rational (missing from the question)
Using direct proofs.
Let x and y be
Such that:


The sum:

Take LCM


Proved, because 7/6 is rational
<em>The above proof works for all values of A, B, x and y; as long as they are rational values</em>