Answer: x = 9
Step-by-step explanation: To solve for <em>x</em> in this equation, we want to get <em>x </em>by itself on the left side of the equation.
Since <em>x</em> is being multiplied by 7, to get <em>x</em> by itself, we need to divide by 7 on the left side of the equation. Since we divided by 7 on the left side, we must also divide by 7 on the right side. On the left side, notice that the 7's cancel out so we're simply left with <em>x</em>. On the right side we have 63 divided by 7 which is 9 so we have <em>x = 9</em>.
Finally, remember to check your answer by substituting a 9 back into the original equation. So we have 7(9) = 63 which is a true statement.
So our answer, x = 9, is correct.
I have attached my work in the image below.
Answer:
30
Step-by-step explanation:
We require to calculate the volume of 1 brick
V = lbh ( l is length, b is breadth and h is height ), that is
V = 14 × 8 × 5 = 560 cm³
Now divide the volume of concrete available by the volume of 1 brick.
number of bricks made = = 30