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Algebra (all content)

Course: Algebra (all content) > Unit 5

Lesson 3: Equivalent systems of equations and the elimination method
Math
Algebra (all content)
System of equations
Equivalent systems of equations and the elimination method
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Systems of equations with elimination challenge

CCSS.Math: HSA.REI.C.6
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Problem

Solve the system of equations.
−7x−10y=45−3x−5y=25\begin{aligned} &-7x-10y = 45 \\\\ &-3x-5y=25 \end{aligned}
x, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
y, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
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