English, asked by gdakash, 7 months ago

x-y=26
x=3y

substitution method

Answers

Answered by tejaankem2006
4

Explanation:

x-y=26

3y-y=26

2y=26

y=13

x-13=26

x=39

Answered by RADP
5

Answer:

x - y = 26.........eq(1) \\  \:  \:  \:  \:  \:  \:  \:  \: x = 3y.........eq(2) \\subtitute \: eq(2)x = 3y \: in \: eq(1) \\  \\ (3y) - y = 26 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  2y = 26 \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  y =  \frac{26}{2}  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   y = 13 (substitute \: in \: eq(2) )\\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:</p><p> x = 3(13) \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x = 39

Hope it helps you.........

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