Answer:
SSS
Step-by-step explanation:
Given that the sides are equal and no angles are given
Answer:
hope this helps
Step-by-step explanation:
y=2x
y=-2x-4
2x+2x=-4 (grouping like terms)
4x=-4
x=-1
im sorry but im not sure what y is
20=3x-1
move -1 to the other side
sign changes from -1 to +1
20+1=3x-1+1
20+1=3x
21=3x
divide both sides by 3 to get x by itself
21/3=3/3x
Cross out 3 and 3, divide by 3 and then becomes 1*1*x=x
21/3=x
Answer:
x=7
Rx - st = r
Rx = r + st Add st to both sides
Rx - r = st Subtract r from both sides
(Rx - r)/t = s Divide t on both sides ( to isolate s)