Mathematics, 05.03.2020 01:55, lilGi0

9:Using the substitution method, Vito is solving the following system of
equations algebraically:
y + 3x = -4
2x - 3y = -21
-Which equivalent equation could Vito use?
(1) 2(-3x – 4) + 3x = -21
(3) 2x - 3(-3x – 4) = -21
(2) 2(3x – 4) + 3x = -21
(4) 2x - 3(3x - 4) = -21

Answers: 3

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9:Using the substitution method, Vito is solving the following system of equations algebraically: y + 3x = -4 2x - 3y = -21 -Which equivalent equation could Vito use? (1) 2(-3x – 4) + 3x = -21 (3) 2x - 3(-3x – 4) = -21 (2) 2(3x – 4) + 3x = -21 (4) 2x - 3(3x - 4) = -21

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9:Using the substitution method, Vito is solving the following system of
equations algebraically:
y + 3x = -4
2x - 3y = -21
-Which equivalent equation could Vito use?
(1) 2(-3x – 4) + 3x = -21
(3) 2x - 3(-3x – 4) = -21
(2) 2(3x – 4) + 3x = -21
(4) 2x - 3(3x - 4) = -21