5ab-2ab+4a-b+5b = 3ab+4a+4b
Add the equations: 4a + 4a - 5b + 5b = 7 + 17 ie 8a = 24 a = 3, so b = 1
The expression is: (4a+b)/(2a-5b)
3a - 2b
2a+6b
4a - 5b = 74a +5b = 17From the first equation:4a = 7 + 5bsubstitute this value in the second equation:7 + 5b + 5b = 177 + 10b = 1710b = 10b = 1Now,solve for a :4a - 5(1) = 74a = 7 + 54a = 12a = 3
5ab-2ab+4a-b+5b = 3ab+4a+4b
Add the equations: 4a + 4a - 5b + 5b = 7 + 17 ie 8a = 24 a = 3, so b = 1
The expression is: (4a+b)/(2a-5b)
3a - 2b
4(a+5b)
8b -2a
Simultaneous Equations 4a - 5b = 7 4a + 5b = 17 Add the two , this will eliminate 'b' 8a = 24 Divide both sides by '8' a = 3 When a= 3 , substitute into eityher equation for 'b'. 4(3) + 5b = 17 12 + 5b = 17 5b = 17 - 12 = 5 5b = Divide both sides by '5'. Hence 'b = 1'.
2a+6b
3a - 2b
It is 9
Without any signs between what appear to be terms, it is not possible to simplify.