1. Which of the following equations is equivalent to 2(a + 6) - 3(a - 5) = 18 1. 5a - 3 = 18
2. -a + - 3 = 18
3. 5a + 27 = 18
4. -a + 27 = 18

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents