5.3.3 quiz two-variable systems: elimination
question 3 of 10
2 points
to begin solving this system of linear equations by elimination, you can add
the equations.
3x + 4y - 38
5x - 4y = -30
8x - 8
this step works because of the
o
o
a. multiplication property of equality
b. addition property of equality
o
c. commutative property
o
d. distributive property
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Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x