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rewrite first equation: x = 15 - y

substitute into second equation for x: 4(15 - y) + 3y = 38

distribute and simplify: 60 - y = 38

solve: y = 22

plug back into first equation: x = -7

-OR-

multiply first equation by -3: -3x - 3y = -45

add new equation to second equation: 1x + 0y = -7 or x = -7

plug back into first equation: y = 22

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โˆ™ 2012-08-23 16:19:26
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A polynomial of degree zero is a constant term

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A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: X plus y equals 15 and 4x plus 3y equals 38?
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