Well, you need
1: at least one variable
2: A formula... example: f(x)
3: numbers
Add up the same sides of both equations to eliminate <em>x</em> :
(<em>x</em> - 2<em>y</em>) + (-<em>x</em> + 3<em>y</em>) = 8 + (-5)
(<em>x</em> - <em>x</em>) + (-2<em>y</em> + 3<em>y</em>) = 8 - 5
<em>y</em> = 3
Then
<em>x</em> - 2<em>y</em> = <em>x</em> - 6 = 8 → <em>x</em> = 14
Answer:
b=5d+5f
solve for b by simplifying both sides and then isolating the variable.
1 3/4 because you have but how many times 4 goes into 7. Then use the difference as the numerator and use 4 as the bottom
In order to calculate the length of highest piece, You need to calculate the Greatest common divisor of 672 & 960 which is 96
So, the length of highest piece would be 96 cm
Now, Number of pieces of Iron-sheet = 672 / 96 = 7
Number of pieces of Copper-sheet = 960 / 96 = 10
Hope this helps!
