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Helga [31]
3 years ago
5

Solve for x: 5x+3y=22 y=2x

Mathematics
2 answers:
den301095 [7]3 years ago
8 0
5x + 3y = 22
y = 2x

Substitute y=2x into the first equation

5x + 3(2x) = 22
5x + 6x = 22
11x = 22
x = 2

Hope that helps :)
Kay [80]3 years ago
8 0
\text{We have the ecuation:} \ 5x+3y=22 \\ \text{We know:}\ y=2x \\***********************\\5x+3*(2x)=22 \\ 5x+6x=22\\11x=22\\ \boxed{\bold{x=2}} \\\\ \boxed{\text{The answer is : x=2}} \\\\  \boxed{y=2*2=4}
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