Do as instructed
1. perform the indicated operation(s). final answer in fraction must be in lowest terms.
a: -8 + 5 (-2)=
b: 12 + 4 - (-7)=
c: -1.5 - (-3.6)=
d: 7/12 - 5/12 =
e: 3/7 + 5/21 +8/9=
f : -2/3 - 1/2 =
answer in a fraction form!

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.