Question

y - (y - x) - x - (y - x)



Please solve in steps
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Answer 1

See the attachment

hope it helps you

Answer 2

y - ( y - x ) - x ( y - x )

solution

y - y - ( - x ) - x ( y - x )

y - y + x - x ( y - x )

x - x ( y - x )

x - ( xy - x² )

x - xy - ( - x² )

x - xy + x²