Translate each sentence into an equation.
2 answers:
<h3>Question 1</h3>
One fourth of m minus six is equal to two times the sum of m and 9:
This is self-explanatory, please comment if something is unclear.
<h3>Question 2</h3>Drew has 50 marbles; red, green and blue.
Equation for this:
- r + g + b = 50
He has six more red marbles than blue marbles:
Equation for this:
- r = b + 6
He has four fewer green marbles than blue marbles:
Equation for this:
- g = b - 4
Substitute r and g into first equation and solve for b:
- r + g + b = 50
- b + 6 + b - 4 + b = 50
- 3b + 2 = 50
- 3b = 48
- b = 48/3
- b = 16
Drew has 16 blue marbles.
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