How do you solve #5(x+8) =20#?

Question

2523 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-09-17T16:22:34

#color(blue)(x = -4#

#color(blue)(5) * (x+8)=20#

#color(blue)(5) * (x) + color(blue)(5) *(8)=20#

#5x + 40 = 20#

#5x = 20-40#

#5x = -20#

#x = -20/5#

#color(blue)(x = -4#

Answer 2 · 2018-08-05T02:06:35

#x=-4#

We can start by dividing both sides by #5# to get

#x+8=4#

To completely isolate #x#, we can subtract #8# from both sides to get

#x=-4#

There is another way of going about this, however. We could have started by distributing the #5# on the left. We would get

#5x+40=20#, and we would subtract #40# from both sides, and divide both sides by #5#. Either way, we would still get #x=-4#.

Hope this helps!