Solve the system by substitution.
y=x
-2x+4y=16...
Answers: 1
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Clara solved the equation 7/3x = −2/3 as shown → 7/3x( 3/7 ) = −2/3 ( 3/7 ) x = −14 what is clara’s error?
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Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).
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Ten times the square of a non-zero number is eqaul to ninety times the number
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