Which equation results from adding the equations in this system? -8x+8y = 8
3x-8y=-18

A: 5x=-10

B: 5x = 26

C: -5x = 26

D: -5x=-10

Step-by-step explanation:

Given equations:

Add together:

Correct option is D

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation: