solve the give linear equation. 23x+22y=89; 22x+23y=91
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[(23x+22y=89)+(22x+23y=91)]
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Answer:
Step-by-step explanation:
23x+22y=89..........(1) now add eq 3and eq4
22x+23y=91.........(2) ∴x+y=4+ x-y=2
∴2x=6
by add eq 1 and 2 ∴x=3 ,put x=3 in eq3
23x+22y=89 ∴3+y=4
+22x+23y=91 ∴y=1
45x+45y=180 ∴x=3 and y =1
45(x+y)=180
x+y=180/45
x+y=4.....(3)
now subtract eq2-eq1
∴22x+23y=91
- -23x+22y=89
x+y=2..........(4)
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