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Daniel Math Academy · Grade 8 Math

Solve Systems by Substitution

Skill U.3 · Systems of equations · ★★☆ Medium

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Solve each system by substitution.

1. 1
   $\{\begin{array}{l}y=4x+21\\ 5x-3y=-35\end{array}$
2. 2
   $\{\begin{array}{l}y=5x+40\\ 2x+5y=-16\end{array}$
3. 3
   $\{\begin{array}{l}y=2x+6\\ 4x-3y=-14\end{array}$
4. 4
   $\{\begin{array}{l}y=-2x+17\\ x-4y=-5\end{array}$
5. 5
   $\{\begin{array}{l}y=-4x-14\\ 3x+y=-10\end{array}$
6. 6
   $\{\begin{array}{l}y=-x-15\\ 6x-5y=-2\end{array}$

Daniel Math Academy · Grade 8 Math

Answer Key

U.3 Solve Systems by Substitution · ★★☆ Medium

1. 1$(-4,5)$
2. 2$(-8,0)$
3. 3$(-2,2)$
4. 4$(7,3)$
5. 5$(-4,2)$
6. 6$(-7,-8)$