2x-5y=16 =>10x-25y=80
5x+3y=9 => 10x+6y=18
subtract one from the other: (6-(-25)y=(18-80), 31y=-62, y=-2
plug y=-2 in 2x-5y=16 to find x: 2x+10=16, x=3
12x+y=12*3-2=34
Answer:
the third option: x + 2(2x - 4) = 10
Step-by-step explanation:
the question tells you that y = 2x - 4.
so, instead of writing y in the equation, just replace it with 2x - 4.
x - 2y = 10
becomes
x - 2(2x-4) = 10
Answer:
x= 3
Step-by-step explanation:
x on triangle 1 is 5 times less than 15
x on triangle 2 is 3 times bigger than 10
Hope this helps!
Answer:
Step-by-step explanation:
1/4 × 4 = 1
4 and 4 will get cancelled and only 1 will be left.
Hope this helps
plz mark as brainliest!!!!!
Answer:
I think its 10
Step-by-step explanation:
hope this helps
