7.Solve the pair of linear equations by the substituting method only4x

1.	7.Solve the pair of linear equations by the substituting method only4x + 5y = 23 and 2x + 3y = 13.
Answer» the linear pair of questions about its answer 4x+5y=235y= 23-4xy= 23-4x/5 2x+3y=132x+3(23-4x)/5=1310x+69-12x/5=13-2x+69= 65-2x= 65-69-2x=-4x=4/2=2y= 23-4x/5 = 23-4×2/5= 23-8/5=15/5=3 589974igfjoiGvkofp00 n=2 is the correct answer 4x + 5y = 23. 23=4x +5y. 23=9xy. 23+9=xy. =32xy 2)2x + 3y=13 13=2x + 3y. 13=5xy 13+5= xy =18xy 4x+5y=23; 2x+3y=13; 2(2x+3y=13)=4x×6y=26; 4x+5y=23/y=3; 4x+5(3)=23; 4x=23-15=8; x=8/4=2

7.Solve the pair of linear equations by the substituting method only4x + 5y = 23 and 2x + 3y = 13.

Answer»

the linear pair of questions about its answer

4x+5y=235y= 23-4xy= 23-4x/5

2x+3y=132x+3(23-4x)/5=1310x+69-12x/5=13-2x+69= 65-2x= 65-69-2x=-4x=4/2=2y= 23-4x/5 = 23-4×2/5= 23-8/5=15/5=3

589974igfjoiGvkofp00

n=2 is the correct answer

4x + 5y = 23. 23=4x +5y. 23=9xy. 23+9=xy. =32xy 2)2x + 3y=13 13=2x + 3y. 13=5xy 13+5= xy =18xy

4x+5y=23; 2x+3y=13; 2(2x+3y=13)=4x×6y=26; 4x+5y=23/y=3; 4x+5(3)=23; 4x=23-15=8; x=8/4=2