Solve the following system of equations using substitution:
2x - 2y + z = 8
-y+z=4
2z...
Mathematics, 03.09.2020 05:01 Gabzer8524
Solve the following system of equations using substitution:
2x - 2y + z = 8
-y+z=4
2z=4
Answers: 2
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Evaluate the expression for the given value of the variable 2×(c2-5) for c=4
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1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25
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