Solve the system using substitution. -2x+5y=19
3x-4=y
1 answer:
Answer:
answer is x=3 and y=5.... so it is (3,5)
Step-by-step explanation:
you want to combine them so y=3x-4 so subsitute y
-2x+5(3x-4)=19
-2x+15x-20=19
+20 +20
13x=39
--- ---
13 13
x=3
now subsitute 3 into x into any problem...
3(3)-4=y
9-4=y
and 9-4 is 5 so it is...
(3,5)
pls give me brainliest
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Step-by-step explanation:
Boys:Girls
3 : 1
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Answer:
The inverse of f(x)=3x+1 is f(x)−1=13x−13
Step-by-step explanation:
As we see, two triangles are congruent triangles
So 36/42 = 6/x
<=> 6/42 = 1/x
<=> 6x = 42
<=> x = 7cm