3 years ago

1. Write an expression equivalent to:

Mathematics

1 answer:

Nataly_w [17]3 years ago

3 0

Example answers:

1) -8x + 66

2) -2(5x+10) -2(-3x+8)

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35) -5(6k + 3) - 8(8-4k) = -73

OLga [1]

Answer:

k = 3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

$-5(6k+3)-8(8-4k)=-73$
$-5(6k) + (-5)(3) + (-8)(8) + (-8)(-4k) = -73$
$-30k-15-64+32k=-73$
$(-30k+32k)+(-15-64)=-73$
$2k-79=-73$

Step 2: Add 79 to both sides.

$2k - 79 + 79 = -73 + 79$

$2k = 6$

Step 3: Divide both sides by 2.

$\frac{2k}2} = \frac{6}{2}$
$k = 3$

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