Answer:
Solution: { -29/3 , -10/3 }
Step-by-step explanation:
2y = x + 3 ---------> equ 1
5y = x - 7 equ 2
equ 1 - equ s ====> -3y = 10
y = -10/3
Put y = -10/3 in equ 1
2 * (-10/3) = x + 3
-20/3 = x + 3
(-20/3) - 3 = x
(-20/3) - (9/3) = x
(-20 - 9) / 3 =x
x = -29/3
Solution: { -29/3 , -10/3 }
An isosceles triangle is a triangle that has two sides of equal length.
So, you have sides of 7,7,4 in which perimeter is 18
or you have sides of 4,4,7 in which perimeter is 15.
6x = 16 +14
6x = 30
30 / 6 =5
x= 5
Answer:
Equation: 14 + x = 16
The unknown variable: x = 2
Step-by-step explanation:
The sum of 14 and a number x:
14 + x
is equal to 16
14 + x = 16
14 + x = 16
x = 16 - 14
x = 2