4 x 8 x 6 x 4 x 26 = 19,968
i think however, i could be wrong. my teacher told me to use the fundamental counting principle. you multiply each different part of the problem.
X=1 because when u put it in then u will find out.y=-1
Answer:
x = -3, y = 7.
Step-by-step explanation:
x + 3y = 18
-3x - 12y = -75
Multiply the first equation by 3:
3x + 9y = 54
Adding the last 2 equations to eliminate x:
-3y = -21
y = 7.
Substitute y = 7 into the first equation:
x + 3(7) = 18
x + 21 = 18
x = 18 - 21
x = -3.