y = 14
The Commutative Property of Addition.
(2, 2)
2x + 5y = 16 -2x - 3y = -14 2y = 2 y = 1 / x = 5.5 (5.5,1) or (5 1/2,1)
11y + 16 + 5y = 16y + 16 = 16(y + 1)
(-5, 2)
The Commutative Property of Addition.
no
(2, 2)
2x + 5y = 16 -2x - 3y = -14 2y = 2 y = 1 / x = 5.5 (5.5,1) or (5 1/2,1)
(x, y) = (3, 2)
11y + 16 + 5y = 16y + 16 = 16(y + 1)
Simultaneous Equations. 4x + 5y = 51 4x - 5y = 21 eliminate 'y' by addition. Hence 8x = 72 x = 72/8 x = 9 When x = 9 Substitute into eith equation. 4(9) + 5y = 51 36 + 5y = 51 5y = 51 - 36 5y = 15 y = 3 Hence the answer is ( x,y) = ( 9,3).
(-5, 2)
x=(-5y-1)/3
5y + 7 = 25y = -5y = -1
If: -x-3y = -4 and 3x+5y = 16 Then: x = 7 and y = -1
6x plus 3y minus 2x plus 5y equals 4x plus 8y.