Math Problem Statement
Himpunan penyelesaian dari x + 2y = -3, y + 2z = 4, dan x + y + 2z = 5 adalah {(x,y,z)} . Nilai dari x + z adalah…
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Systems of Equations
Formulas
x = -3 - 2y
z = (4 - y) / 2
Substitute into the third equation: (-3 - 2y) + y + 2 * ((4 - y) / 2) = 5
Theorems
Substitution Method
Solving Systems of Linear Equations
Suitable Grade Level
Grades 10-12
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