solve 2x÷a+y÷b=2andx÷a-y÷a=4
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Step-by-step explanation:
- 2x/a +y/b=2
- x/a - y/b=4
add 1 and 2
3x/a= 6
x=2a
put in 2
2a/a -y/b=4
=> -y/b=4-2=2
y=-2b
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