Tarush is a landscape architect. For his first public project he is asked to create a small scale drawing of a garden to be placed in the corner of a city park. The garden is a right triangle with base 10 m10\text{ m} 10 m 10, start text, space, m, end text and height 15 m15\text{ m} 15 m 15, start text, space, m, end text . Draw the garden such that 11 1 1 unit on the grid below represents 2 m 2\text{ m} 2 m 2, start text, space, m, end text . ≈8.2\approx 8.2 ≈8.2 ≈8.9\approx 8.9 ≈8.9

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

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step-by-step explanation:

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x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7