2x+3y=7 3x+y=14 on substitution method
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2x+3y=7---(1)
3x+y=14---(2)
multiplying by 3 in equation (2),
9x+3y=42---(3)
equation (3) - equation (1),
9x + 3y = 42
2x + 3y = 7
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7x = 35
x = 35÷7
x = 5
substituting the value of x=5 in equation (2),
3x+y=14
3(5)+y=14
15 +y=14
y= 14-15
y= -1
it will help you.
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