You need to use a diagram at least if your a beginner
X=smallest number
X+x+2+x+4+x+6+x+8+x+10=354
6x+30=354
6x=324
X=54
Since the angles sum of △ is 180°,here's the equation:
60°+65°+(8x+7)=180°
8x+7=180°-60°-65°
8x=55-7
x=48/8
x=6
Thus,the answer is x=6
Hope it helps!
The given equation is: 4 + 3x + (x.2)
As you can notice, in the parenthesis, we have a multiplication between the variable x and the number 2. Since we can't multiply a variable with a number, x.2 becomes 2x. So the reason for statement 2 is multiplication.
Hope this helps! :)
The answer is a is greater than or equal to 13 :)