What is the answer to 1/2 =2(-4)+b ?

The answer to 1/2 =2(-4)+b is b= 17/2

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1/2 =2(-4)+b

\frac{1}{2} = 2 (- 4) + b

b = \frac{17}{2}

Decimal Notation

b = 8.5

Solution steps

\frac{1}{2} = 2 (- 4) + b

Switch sides

2 (- 4) + b = \frac{1}{2}

Remove parentheses:

(- a) = - a

- 2 \cdot 4 + b = \frac{1}{2}

Multiply the numbers:

2 \cdot 4 = 8

- 8 + b = \frac{1}{2}

Move

8

to the right side

b = \frac{17}{2}

3 y = - 9

7 x^{2} + 43 x + 40

100 - x^{8} \geq 25

\frac{1}{2} \cdot (- 1)

6 x^{2} + 8 x + 4