2x+2y=10;2x-3y=4 substitute
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2x+2y=10____(1)
2x-3y=4___(2)
_______
5y=6
y=6/5
from equation (1)
2x+2×6/5=10
2x+12/5=10
2x=10-12/5
2x=50-12/5
2x=38/5
x=19/5
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