Evaluate 15-0.75w+8x when w=12 and x=1/2

Put the values of w = 12 and x = 1/2 to the expression 15 - 0.75w + 8x.

15 - 0.75(12) + 8(1/2) = 15 - 9 + 4 = 6 + 4 = 10

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step-by-step explanation:

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