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Question:
Solve for y:
5x + 3y = 22
y = 2x
A
4
explanation
First, plug the definition of y from the second equation into the first equation.
5x + 3(2x) = 22
Simplify and solve for x.
5x + 6x = 22
11x = 22
x = 22 \u00F7 11
x = 2
Next, plug x back into the second equation for y and solve.
y = 2x
y = 2 \u00D7 2
y = 4
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