Answer:
Step-by-step explanation:
100 + 100 + 6x + 6 + 12x - 8 = 360 Equation. Collect like terms.
198 + 18x = 360 Subtract 198 from both sides
18x = 360 - 198
18x = 162 Divide by 18
x = 162/18
x = 9
Sorry just getting free points
I already answered this question, if you look back in your questions you should find this answered along with another one. I'll do it again just in case you don't find it.
Answer:
{y,x} = {-4,-2}
Expanation:
Solve by Substitution :
// Solve equation [1] for the variable y
[1] y = 2x
// Plug this in for variable y in equation [2]
[2] -2•(2x) - 8x = 24
[2] - 12x = 24
// Solve equation [2] for the variable x
[2] 12x = - 24
[2] x = - 2
// By now we know this much :
y = 2x
x = -2
// Use the x value to solve for y
y = 2(-2) = -4
