Simultaneous Equations
3x + y = 4
5x - y = 22
The signs of the matching values aren't the same so we add the rest of the equations.
8x = 26
Divide both sides by 8 to get x = 3.25
Now substitute back into the first equation.
(3 x 3.25) + y = 4
9.75 + y = 4
Subtract 9.75 from both sides
y = -5.75
Answer:
Choice C
Step-by-step explanation:
x^2 +6x+8
what numbers multiply together to make 8 and add together to make 6
4*2 = 8 4+2 =6
(x+2) (x+4)
Choice C
False. The decimal form can be found by doing 3 + (3 ÷ 8). It would be 3.375.
Hope this helps!
Y+7x^2
If it isnt that then it is: y+7x^4
Hope I helped
