Answer:
You would subtract 6 from each side.
Step-by-step explanation:
- 14 = 7x + 6
Subtract 6 from each side:
- 14 - 6 = 7x + 6 - 6
7x = - 20
Divide each side by 7:
7x ÷ 7 = - 20 ÷ 7
x = 2 and 6/7
2x + y = 1 . . . (1)
3x - y = -6 . . . (2)
(1) + (2) => 5x = -5 => x = -5/5 = -1
From (1), 2x - 1 = 1 => 2x = 1 + 1 = 2 => x = 2/2 = 1
x = 1, y = -1
Answer:
6
Step-by-step explanation:
Alright! So, this might seem complicated at first, but in the end its just a bit of algebra. If we think of a triangle, adding all of the sides together creates the perimeter. This means that 3(x-3) + 4x-1 + 2x+5 = 49. After this we can simplify to 9x - 5 = 49, and 9x = 54. Since 54/9 = 6, this means that x = 6.
Well the difference in the triangle and rectangle prism is that the equation called for 1/2 of the triangles b times h but the rectangle doesn't get divided by two so if the cross sections are equal the for the rectangle it would be v= 50(2)
of v=100
Answer:
20
Step-by-step explanation:
-3+ 2(4) - 3(-5)
= -3+ 8 + 15
=20
