3x=8
Solve for x by dividing by 3 on both sides
x=8/3
Now plug 8/3 in for x in second equation
3(8/3)+y=15
This gives you
8+y=15
Subtract by 8 on both sides to find y
y=8
Now write it in ordered pair form (x,y)
So your answer is (8/3,8)
Answer:
The answer to your question is: x = 100
Step-by-step explanation:
It's a polygon of 7 sides
The sum of internal angles in a polygon equals 180(n-2), where n = # of sides
Internal angles = 180(7-2)
= 180(5)
= 900°
(x + 50) + (x + 50) + (x + 50) + x + x + x + (x + 50) = 900
4(x + 50) + 3x = 900
4x + 200 + 3x = 900
7x = 900 - 200
7x = 700
x = 700 / 7
x = 100
Answer:
x=-1
Step-by-step explanation:
-5x=5
-x=1
x=-1
or solve this way
-5x=5
5x=-5
x=-1
Answer:
what do u think it is?
Step-by-step explanation:
12x^2-4x-5=0
12x^2+6x-10x-5=0
6x(2x+1)-5(2x+1)=0
(6x-5)(2x+1)
6x-5=0 , 2x+1=0
6x=5 , 2x=-1
x=5/6 , x=-1/2