The Delhi metro track is 240 \text{ km}240 km240, start text, space, k, m, end text long today. Two years ago, it was 200 \text{ km}200 km200, start text, space, k, m, end text long. By what percentage did the metro track increase in the last two years?

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step-by-step explanation:

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step-by-step explanation:

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step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14