# - 2, 1x-0, 4 (x-5y) +1, 5 (-8y-x) at x=0.7 y=-0, 1 Simplified expression and find its value

Nakabzil

35

- 2.1kh - 0.4 (x - 5u) + 1.5 (-8u - x) = - 2.1kh - 0.4kh + 2u - 12u - 1.5kh = - (2.1kh + 0.4kh + 1.5kh) - (12u - 2u) = - the 4th - 10u at x = 0.7 at = - 0.1 - 4 * 0.7 - 10 * (-0.1) = - 2.8 + 1 = - 1.8 Answer: (-1.8).

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