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Earn +20 ptsQ: What must be added to 3x -7 to make x2 plus 4x -1?
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Why is the expression 3x equivalent to the expression x plus x plus x?
when you say 3x, you mean that there are 3 x's. Multiplication implies repeated addition, so three x's added is x+x+x, which equals 3x.
Which expression must be added to 3x-7 to equal 0?
That completely depends on the value of 'x'. Whatever 'x' happens to be at the moment, you must add to this expression an amount equal to triple-x less than 7. In other words, the expression [ 7 - 3x ] must be added.
What is 3x plus 1 plus 10?
3x + 11
What is (3x plus 5) plus (-8x-10)?
It is equivalent to: 3x+6+5 = 3x+11
What is the answer to 3x times the quantity 12x plus 9?
3x multiplied by (12x plus 9) is:3x(12x + 9)= (3x * 12x) + (3x * 9)= 36x2 + 27x
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