If A and B are linear expressions and A+B =2x-2 and A-B=4x-8 find A and B
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A+B = 2x-2 ---(i)
A-B= = 4x-8 ---(ii)
Adding both the equations, we get
2A = 6x -10
⇒A = (6x-10)/2
⇒A = 3x - 5
put value of A in equation (i)
(3x-5) + B = 2x-2
⇒ B = 2x-2-(3x-5)
⇒ B = 2x-2-3x+5
⇒ B = -x+3
⇒ B = 3-x
Hope I helped you! :)
A-B= = 4x-8 ---(ii)
Adding both the equations, we get
2A = 6x -10
⇒A = (6x-10)/2
⇒A = 3x - 5
put value of A in equation (i)
(3x-5) + B = 2x-2
⇒ B = 2x-2-(3x-5)
⇒ B = 2x-2-3x+5
⇒ B = -x+3
⇒ B = 3-x
Hope I helped you! :)
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