When both sides of an equation have the same number subtracted from each of them, so the remaining part of the equation is still equal
Step-by-step explanation:
-5x+8y=-4
6x-8y=-12 8y and 8x cancel out
x=-16
To solve for y, substitute x=-16 back into the first equation
-5(-16)+8y=-4
80+8y=-4
8y=-84
y=-10.5
Distributive, if you do 4 times x and 4 times 2 you get 4x+8
Answer:
x(roots) = 3, 1, -4.
Step-by-step explanation:
Find the roots by solving for x.
Hope this helps,
Davinia.
Y=3x+5 is right.............