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