-5c-10-5c-2=8 equations

c = -2

Step-by-step explanation:

-5c - 10 - 5c - 2 = 8

-10c - 12 = 8

      +12     +12

-10c = 20

/ -10    / -10

c = -2

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.