8(2x – 14)+13 = 4x – 27We first multiply what we can.
16x-112+13=4x-27
Then we sum
16x-99=4x-27
Then we move all the number and separated from x
16x-4x=-27+99
we simplify
12x=72
Then we divide
x=72/12
x= 6
To solve this we put 6 instend of x
8(2(6) – 14) +13 = 4(6) – 27<span>we</span> <span>aolve</span> <span>teh</span> things in parenthesis
8(12-14)+13=24-27
8(-2)+13= 24-27
We <span>just solve</span>
-16+13= -3
-3=-3
So our answer is 6 since -3 does equal to -3
Answer:
>
Step-by-step explanation:
1 - 3 ?? -4
-2 ?? -4
The appropriate symbol for this ?? relation is >.
1 -3 > -4
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
4x - 3y = 8 ⇒ 8x - 6y = 16
5x - 2y = -11 ⇒ 15x - 6y = -33
-7x = 49
-7 -7
x = -7
4x - 3y = 8
4(-7) - 3y = 8
-28 - 3y = 8
+ 28 + 28
-3y = 36
-3 -3
y = -12
(x, y) = (-7, -12)
To use elimination you have to multiply the first graph by 2 and the second graph by 3 so that the two y-axis can be equal to -6. Then you do the rest to find the answer of the x-axis and the y-axis.
