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2 years ago

3(x-6)-8x=-2 + 5(2x+1)

Mathematics

2 answers:

Alborosie2 years ago

4 0

Answer:

$x=-\cfrac{7}{5}$

$x=-1.4$

Step-by-step explanation:

$3(x-6)-8x=-2 + 5(2x+1)$

$3(x-6)-8x \:\bold{Expand}$

$-2+5\left(2x+1\right)\:\bold{Expand}$

$-5x-18=10x+3$

$-5x-18+18=10x+3+18\:\bold{Add\:18\:to\:both\:sides}$

$-5x=10x+21$

$-5x-18+18=10x+3+18\:\bold{Subtract\:10x \:from\:both\:sides}$

$-15x=21$

$\cfrac{-15x}{-15}=\cfrac{21}{-15}\:\bold{Divide \: both\: sides\: by\: 15}$

$x=-\cfrac{7}{5}$

postnew [5]2 years ago

3 0

Answer:

Step-by-step explanation:

3(x - 6) - 8x = -2 + 5(2x + 1)

3x - 18 - 8x = -2 + 10x + 5

-5x - 18 = 10x + 3

-15x = 15

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