What do you need help with. I don’t see any questions or equations being found but have a great day :)
Step-by-step explanation:
4x - 3y = 1 ....... 1
3y = x - 1 ..... 2
sub 2 in 1
4x - (x -1) = 1
4x - x + 1 = 1
3x = 1 - 1
3x = 0
divide by 3 on both side
x = 0
sub the value of x in 2
3y = 0 - 1
3y = -1
divide by 3 on both sides
y = - 1/3
(x;y)
(0;-1/3)
Answer:
iii. (l + m - n)(l - m + n)
vi. (5a -b) ( 5b - a)
Step-by-step explanation:
iii. l² - (m - n)²
= (l + m - n)(l - m + n)
vi. 4(a+b)² - 9(a-b)²
= (2(a+b))² - (3(a-b))²
= (2(a+b) + 3(a-b)) (2(a+b) - 3(a-b))
= (2a+2b + 3a - 3b) (2a+2b - 3a + 3b)
= (5a -b) ( 5b - a)
It is c because the right equation is y=Mx+b
