Solve the simultaneous equations
2x + 5y + 11 = 0
3x - y-8= 0

x = 1, y = -2

Step-by-step explanation:

2x + 5y + 11 = 0 --- Equation 1

3x - y - 8 = 0

15x - 5y - 40 = 0 --- Equation 2

Equations 1+2: 2x + 5y + 11 + 15x - 5y - 40 = 0 + 0

17x - 29 = 0

17x = 29

x = 29 ÷ 17

x = 1

Substitute x = 1 into Equation 1:

2x + 5y + 11 = 0

2(1) + 5y + 11 = 0

3 + 5y = -11

5y = -11 - 3

    = -14

y = -14 ÷ 5

y = -2

step-by-step explanation:

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.