If (5x+3):(7x+3)=3:4, find the value of x.
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Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

For the inequality |c| < |d| to be true, which of the following must be true?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.