The triangles are similar what is the value of x

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)