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Is this a system of equations?
2X + 5Y = 4
X + 5Y = 7
solve for X using bottom equation
X = 5Y - 7
insert into top equation
2(5Y - 7) + 5Y = 4
distribute
10Y - 14 + 5Y = 4
solve for Y
15Y = 18
Y = 18/15 = 6/5
use bottom equation to find X
X +5(6/5) = 7
X = 1
check with bottom equation
1 + 5(6/5) = 7
7 = 7
not true for top equation
( sorry, I forgot what happens then-resubmit question )
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What is the Answers to 4(2x plus 5y)?
8x + 20y
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2X + 5Y = 205Y = - 2X + 20Y = (- 2/5)X + 4================now, reading off the function,Y intercept = 4===========
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