Answer:
sorry don't know
Step-by-step explanation:
Answer:
7/12
Step-by-step explanation:
Answer:
x = -14
Step-by-step explanation:
= -7
multiply 2 on both sides
the 2's cancel out on the fraction side, leaving x = -7(2)
multiply -7 and 2 to get -14
x = -14
Answer:
7777777777777777777777777777777777777777777777777777777777
Step-by-step explanation:
Any number multiplied by 1 is itself.
Answer:
y=15
x=43
(any variable can be used, I used x and y to make it easier to show)
Step-by-step explanation:
x+y=58
x-y=28
get x by its self
x=58-y
then subsitute into the other equation
(58-y)-y=28
58-2y=28
-2y=-30
y=15
sub. again
x+15=58
x=43