Question

Which answer shows this equation in standard form? 7 – 3(x – y) = –5x + 2 A.–8x + 3y = –5 B.–2x – 3y = 5 C. 2x + 3y = –5 D. 2x – 3y = –5

Answer 1

The question is which answer does show the standard form of the equation: 7-3(x-y)=-5x+2. To see that let's transform our equation into standard form. Standard form of a linear equation is: ax+by=c. So our equation is: 7-3x+3y=-5x+2. Now we put the unknowns on the left and the numbers on the right: -3x+5x+3y=2-7 and we get 2x+3y=-5. And we see that the correct answer is C.