Answer:
Option A: (5,-2)
Explanation:
4x - 3y = 26
3x + 2y = 11
from equ 1 make x the subject formular | equ means equation
4x - 3y = 26
4x = 26 + 3y
x = (26 + 3y)/4
Substitute x = (26 + 3y)/4 into equ 2
3((13+3y)/4) + y = 11
(39+17y)/4 + y = 11
39/4 + 17y/4 + y = 11
39/4 + 17y/4 = 11
17y/4 = 11 - 39/4
17y/4 = -17/2
17/4y/17/4 = -17/2/17/4
y = -2
Substitute y = -2 into equ 2
3x + 2y = 11
3x + 2(-2) = 11
3x - 4 = 11
3x = 11 + 4
3x = 15
3x/3 = 15/3
x = 5
(x,y) = (5,-2)
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