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Grade 8 Math: Systems of Linear Equations

Grade 8 • Math • 10 minute practice

Name
Date
1.
Solve: x + y = 10, x − y = 2.
2.
Solve: y = 2x, y = x + 3.
3.
Solve by substitution: y = 3x, x + y = 16.
4.
Solve: 2x + y = 11, x − y = 1.
5.
How many solutions if lines are parallel?
6.
How many solutions if lines intersect?
7.
Solve: x = 5, y = 2x − 1.
8.
Elimination: 3x + 2y = 16 and 3x − 2y = 4. Add to find x.
9.
x + y = 10, x − y = 2. y = ?
10.
y = 2x, y = x + 3. y = ?
11.
x = 5, y = 2x − 1. y = ?
12.
4x + y = 14, y = 2x + 2. x = ?

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