How do you solve #11s - 6s + 5= 20#?

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Answer 1 · 2017-05-16T03:56:07

Add like terms and isolate. In this case, #s=3#.

In order to solve this equation, we must isolate the #s#-value.

To do this, we have to add like terms and slowly isolate the #s#.

#11s-6s+5=20#

#5s = 15#

Here, I added the like terms of #s# together, and I moved the #5# to the other side of the equal sign, adding those terms together.

Now, we can isolate #s#.

#(5s)/5=15/5#

#s=3#

We can double check our work by subbing in #s=4# in the original equation.

#11s-6s+5=20#

#11(3)-6(3)+5=20#

#33-18+5=20#

#20=20#

Therefore, we can conclude that #s=3#.

Hope this helps :)