How do you solve #4x + 5+ 25= 90#?

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Answer 1 · 2017-05-03T01:14:58

See the solution process below:

Combine the like terms on the left side of the equation:

#4x + 5 + 25 = 90#

#4x + (5 + 25) = 90#

#4x + 30 = 90#

Next, subtract #color(red)(30)# from each side of the equation to isolate the #x# term while keeping the equation balanced:

#4x + 30 - color(red)(30) = 90 - color(red)(30)#

#4x + 0 = 60#

#4x = 60#

Now, divide each side of the equation by #color(red)(4)# to solve for #x# while keeping the equation balanced:

#(4x)/color(red)(4) = 60/color(red)(4)#

#(color(red)(cancel(color(black)(4)))x)/cancel(color(red)(4)) = 15#

#x = 15#