book Maths Puzzle Numerical Ability

factor out the GCF from the polynomial -14y^3+8y

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book Other Question

adam took 7 test scores and divided the correct sum by 6 which yielded 84. what is the correct average test score? Please help me solve the following problems. Solve each system by graphing.

1. y=2/3x
2x + 3y = 5

2. x = y+3
3x - 2y = 4

3. 2x - y = 4
2x - y = 3