7x+13x=140
7x + 13x = 140
Combine all the x terms:
20x = 140
Solve for x.
To find the value of x in the equation 7x + 13x = 140, you need to combine the like terms on the left side of the equation and then solve for x.
Step 1: Combine like terms
In the equation, you have 7x and 13x as the two terms on the left side. To combine them, add the coefficients and keep the variable unchanged. So, 7x + 13x can be rewritten as (7 + 13)x.
Now the equation becomes 20x = 140.
Step 2: Solve for x
To isolate x, you need to divide both sides of the equation by 20. This will cancel out the coefficient of x.
Dividing both sides by 20, you get:
(20x)/20 = 140/20
x = 7
So, the value of x in the given equation is 7.