If A=5x + 3y +2 and B = -3x +4y - 7, find A+B AND A-B
please help me
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Step-by-step explanation:
A=5x + 3y +2
B = -3x +4y - 7
A+B = 5x + 3y +2+( -3x +4y - 7 )
= 5x-3x+ 3y+4y +2-7
= 2x+7y-5
A-B = 5x + 3y +2- (-3x +4y - 7)
= 5x+3x +3y-4y +2+7
= 8x-y+9
hope it help
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