6x+7+9x+10= - 15x+17, 8y+19-7y= - y+19, 5x+7y+19-8x= - -3x+7y+19, 2x+x= - 3x, 2(3x+6)+2y= - 6x+2y+12, 6(10-9x)+2= - -54x+62,

Simplifying Linear Expressions

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