The sum of a number times 7 and 28 is greater than 30
To solve this problem, let's break it down into steps:
Step 1: Define the unknown variable
Let's call the unknown number "x". So, the given expression would be: 7x + 28.
Step 2: Write the inequality
The problem states that the sum of this expression and 30 is greater than 30. In other words, we have the inequality: 7x + 28 > 30.
Step 3: Solve the inequality
To solve the inequality, we need to isolate the variable on one side of the equation. Here's how we can do that:
Subtract 28 from both sides of the inequality:
7x + 28 - 28 > 30 - 28
7x > 2
Step 4: Solve for x
Now, divide both sides of the inequality by 7 to solve for x:
7x/7 > 2/7
x > 2/7
So, x is greater than 2/7.
a number times 7 -- 7x
sum of -- add
is -- =
7x+28 = 30