A certain number is added to 11 and the result is multiplied by 3, the final result is 45. Find the number
(11+x)(3)=45
(11+x)(3)=45
33+3x=45
3x=45-33
3x=12
By dividing both sides by 3
3x/3=12/3
X=4
Let's put it and see the answer.
(11+4)(3)=45
33+12=45
45=45
Therefore, the number (x) is equal to 4 (x=4)
Let x be the number
(11+x)(3)=45
33+3x=45
3x=45-33
3x=12
You will divide both sides by 3
3 will cancel 3 and goes into 12 =4
Therefore x=4
(x+11)*3 = 45
solve for x
To find the number, we need to solve the equation. Let's break it down step by step.
Step 1: A certain number is added to 11.
Let's represent the unknown number as "x". So, the equation becomes: x + 11.
Step 2: The result is multiplied by 3.
Multiplying the sum (x + 11) by 3 gives us: 3(x + 11).
Step 3: The final result is 45.
Setting up the equation by equating the expression to 45: 3(x + 11) = 45.
Now, we can solve the equation to find the value of x.
Step 4: Solve the equation for x.
Distribute 3 to both terms inside the parentheses: 3x + 33 = 45.
Step 5: Simplify the equation.
Subtract 33 from both sides of the equation to isolate 3x: 3x = 45 - 33.
Doing the arithmetic, we get: 3x = 12.
Step 6: Solve for x.
Divide both sides of the equation by 3 to isolate x: x = 12/3.
Simplifying further, we find that x = 4.
Therefore, the number we are looking for is 4.