3*(n + 8) = 21
Divide both sides by 3: n + 8 = 21/3 = 7
Substract 8 from both sides: n = 7 - 8 = -1
If: -3*(x+8) = -21 Then: x = -1
14 x (1 + 4) = 14 x 5 = 70
kl
The sum means the result of adding the numbers. Therefore the sum of 20 and 15 is 35. 5 times 35 is 175 - therefore 5 multiplied by the sum of 20 and 15 is 175.
6
If: -3*(x+8) = -21 Then: x = -1
The number is 48.
When you add a number to another number the result is their sum
Any number multiplied by zero will always give the result of zero.
14 x (1 + 4) = 14 x 5 = 70
6x + 18 = 4 - x 7x + 18 = 4 7x = -14 x = -2
kl
The sum means the result of adding the numbers. Therefore the sum of 20 and 15 is 35. 5 times 35 is 175 - therefore 5 multiplied by the sum of 20 and 15 is 175.
7(a+3)
6
The sum is the total when numbers are added together, the product is the total when they are multiplied.
4(8+2x)=5x+1132+8x=5x+118x-5×=11-323x=-213 3=-7Therefore the number is -7