Question

A+b=2x-2 and a-b=4x-8 find a and b

Answer 1

Ok so, A + B = 2  x - 2

And A - B = 4 x- 8.

Solving: A = (2x-2+4x-8)/2 = (6x-10)/2= 3x-5

B = (2x-2-4x+8)/2= (-2x+6)/2= -x+3

Happy studying ^-^

Answer 2

A+b=2x-2
a-b=4x-8
a=6x-10
a=4x-8+b
6x-10=4x-8+b
2x-10=b-8
2x+2=b
2x-2=b-4
a+b=b-4
a=-4
-4=6x-10
6=6x
x=1
2-2=b-4
0=b-4
4=b

a=-4
b=4

Hope this helps :)