Question

Solve the system of equations. 3x + 4y =8
-2x + 5y = 3

Answer 1

Are these answers together or seperate

Answer 2

The answer for the first one is 8/3-4y/3

Answer 3

The answer for the second one is 5y/2-3/2

Answer 4

well its 2 equation but in one problem..im suppose to solve the system of equations

Answer 5

can you guys set it up?

Answer 6

/ This sign means fraction sign

Answer 7

ok..im saying i cant just put a answer..can you show me how you solved it??

Answer 8

yesterday i showed you substitution, now i'll show you elimination:
3x + 4y = 8....(i)
-2x +5y = 3....(ii)
multiply equation (i) by 5 and equation (ii) by 4 inorder to be able to get same value of y
5 (3x + 4y = 8) = 15x +20y = 40 ......(i')
4 (-2x +5y = 3) = -8x +20y = 12......(ii')
subtract (ii) from (i)
15x -(-8x) +20y - 20y = 40-12
23x = 28
x = 28/23 - = 1 5/23
from (i) y = (8-3x)/4
y = 1 2/23
solution (x,y) = (1 5/23, 1 2/23)

Answer 9

:)) thank youu

Answer 10

:)