Answer:
Step-by-step explanation:
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Answer:
7
Step-by-step explanation:
2 + 5=7
The answer is 7 duhhhhhh
Help please
Answer:
x = -2.04
y = - 0.408
Step-by-step explanation:
this is a solve by substitution problem. you know what x is from the first equation so you plug that into the second equation and solve for y. then when you know y you can plug y back into any equation to find x.
y=10(5y)+20 (substitute x)
y=50y+20 (subtract 50y from both sides)
-49y=20 (divide each side by -49)
y= -0.408
x=5(-0.408) (plug y in)
x= -2.04