Answer: 24
Work: 4x= 4•12, yz = 8•3, so you have to do 48 (4 times 12) - 24 (8 times 3)
To answer this, you should "subtract" x+y=7 from 3x+y=45.
What is left is 2x=38, where x then equals 19.
Plug this value into any of the equations (I will choose x+y=7 for simplicity).
19+y=7, y=-12
Check this answer by plugging it into the other equation.
3(19) + (-12) =45
45=45 so it is correct
X=19 and Y=-12
3y = - 5x - 2
y = - 5/3x - 2/3
- 5/3
Largest to smallest would be 0.63, 0.58, 0.06, 0.059
HI + IJ = HJ
=> x + 12 + 16 + x = 20
<=> 2x + 28 = 20
<=> 2x = -8
<=> x = -4
with x = -4 => HI = - 4 + 12 = 8
Step-by-step explanation: