Solve the system by substitution. -5x + 3y = 2 y = 2x
1 answer:
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Always remember that:
Minus x Minus = Plus
E.g. -2 x -3 = 5
Minus x Plus = Minus
E.g. -2 x 3 = -5
Plus x Plus = Plus
E.g. 2 x 3 = 5
Minus x Minus = Plus
E.g. -2 x -3 = 5
Minus x Plus = Minus
E.g. -2 x 3 = -5
Plus x Plus = Plus
E.g. 2 x 3 = 5
The area of a triangle is half the product of the base and the height.
Since multiplication is commutative, the following expressions are equivalent:
So, option D is correct