Algebra, Trig Solve the System: 7x + Research Paper

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Algebra, Trig

Solve the system: 7x + 3y = -2, -7x -- 7y =

(7x + 3y) + (-7x -- 7y) = (-2 + 14) 7x + 3y -- 7x -- 7y = 12 -4y = 12 y = -3

Substituting y for the first equation: 7x + 3(-3) = -2 7x -- 9 = -2 7x = 7 x = 1

x = 1, y = -3.

Solve the system: x + y = -5, x -- y = 12

(x + y) + (x -- y) = (-5 + 12) x + y + x -- y = 7 2x = 7 x = 7/2

Substituting x for the first equation: 7/2 + y = -5 y = -5 -- (7/2) y = -17/2 x = 7/2, y = -17/2.

Stuck Writing Your "Algebra, Trig Solve the System: 7x +" Research Paper?

Solve the system: y -- 3z = -12, -2x + y + 2z = 5, 2x + 3z = 7

(y -- 3z) + (-2x + y + 2z) + (2x + 3z) = -12 + 5 + 7 y -- 3z -- 2x + y + 2z + 2x + 3z = 0

2z = 0 y + z = 0 y = -z

Substituting for y for the first equation: -z -- 3z = -12 -4z = -12 z = 3 y = -3

Substituting z for the third equation: 2x + 3(3) = 7 2x + 9 = 7 2x = -2 x = -1

Answer: x = -1, y = -3, z = 3.

Solve the system: y = 4x + 3, 4y.....

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Algebra, Trig Solve the System: 7x + Research Paper

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