3 years ago

What is 2d +17 – 3 – 2d + 4d Simplified?

Mathematics

2 answers:

Anna35 [415]3 years ago

5 0

Answer:

Step-by-step explanation:8(2k+1+3k

siniylev [52]3 years ago

3 0

Answer:

4d+13

Step-by-step explanation:

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Sophie [7]

Answer/Step-by-step explanation:

Area of trapezium = ½*(AD + BC)*AB

Area = 42 cm²

AD = (x + 8) cm

BC = (x + 5) cm

AB = x cm

Plug in the values into the equation

42 = ½((x + 8) + (x + 5))*x

42 = ½((x + 8 + x + 5)*x

42 = ½(2x + 13)*x

Multiply both sides by 2

42*2 = (2x + 13)*x

84 = 2x² + 13x

2x² + 13x = 84

Subtract both sides by 84

2x² + 13x - 84 = 0

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Solve x 9/× = x/4 what is x

Semmy [17]

Answer:

x = - 6, x = 6

Step-by-step explanation:

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