Question

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
10x + 11y = -26.5

20x + 5y = -27.5

Answer 1

multiply first by minus ten

Answer 2

you multiply what what by -10

Answer 3

the first equation dear

Answer 4

so would the first part be -100

Answer 5

multiply the top equation by -2
this means multiply all the terms on the left side by -2 and all the terms on the right side by -2 (there's only 1 term on the right)
add the two equations. If you do it right, the -20x + 20x will add to zero, leaving only -22y+5y on the left side, and some number on the right. solve for y. once you know y, substitute its value into one of the equations, and solve for x.

Answer 6

so y would be -17