The answer is 2/5, which is 2 over 5
Answer: x = -1 and y = 5
Step-by-step explanation:
7x + 3y = 8 ........................... equation 1
4x - y = - 9 ............................ equation 2
Solving the simultaneous linear equation by substitution method , make y the subject of the formula from equation 2 , we have
y = 4x + 9 ............................. equation 3
substitute y = 4x + 9 into equation 1 , we have;
7x + 3 ( 4x + 9 ) = 8
7x + 12x + 27 = 8
19x + 27 = 8
subtract 27 from both sides
19x = -19
divide through by 19
x = -1
substitute x = -1 into equation 3 , we have
y = 4 ( -1) + 9
y = -4 + 9
y = 5
Therefore :
x = -1 and y = 5
(x+2)/(x) + (x-3)/(x+2)
Common denominator x(x+2)
Reduce both to common denominator:
x+2)/[x(x+2)] + (x-3)/[x(x+2)] ===> [(x+2)² + (x-3)] / [x(x+2)]
= [x²+4x+4+x-3] / [x(x+2)]
=[x²+54x+1] / [x(x+2)]
1 Simplify -f+2+4f−f+2+4f to 3f+23f+2
3f+2=8-3f3f+2=8−3f
2 Subtract 22 from both sides
3f=8-3f-23f=8−3f−2
3 Simplify 8-3f-28−3f−2 to -3f+6−3f+6
3f=-3f+63f=−3f+6
4 Add 3f3f to both sides
3f+3f=63f+3f=6
5 Simplify 3f+3f3f+3f to 6f6f
6f=66f=6
6 Divide both sides by 66
f=1
