How do you solve #3x-7>5#?

2 Answers
May 14, 2018

Answer:

#x > 4#

Explanation:

Solving inequalities is similar to solving equations.

First, we want to add #color(blue)7# to both sides of the inequality:
#3x - 7 quadcolor(blue)(+quad7) > 5 quadcolor(blue)(+quad7)#

#3x > 12#

Now divide both sides by #color(blue)3#:
#(3x)/color(blue)3 > 12/color(blue)3#

So the answer is:
#x > 4#

This is the same thing as "#x# is greater than #4#".

Hope this helps!

May 14, 2018

Answer:

The answer is:
#x > 4#

Explanation:

#3x - 7 > 5#

Let's make it look simpler by isolating the x-base value.

We can add 7 on both sides to eliminate 7 on LHS

#3x - 7 + 7 > 5 + 7#
#or, 3x > 12#

Dividing both side by 3:

#or, (3x)/3 > 12/3#
#or, x > 4#