Question

y=3x (1)
y-x=26 (2)
solve it by substitution method
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Answer 1

Answer:

Hope it will help you...

Answer 2

Answer:

l

$y = 3x \\ y - x = 26 \\ 3x - x = 26 \\ 2x = 26 \\ x = 13 \\ y = 3x = 3 \times 13 = 39 \\ y = 39$