83.57 i believe because you would round the 43 down so it would stay the same
<span>12x +3y = 12
y = -4x +5
We can convert the first equation to the same form as the second (y=mx+b, or slope-intercept).
12x +3y = 12
3y = -12x +12
y = -4x +4
Comparing the simplified first equation y = -4x +4 to the second equation y = -4x + 5, we see that both have the same slope (m = -4), but different y-intercepts (b = 4, b = 5). This means they are parallel lines, or an inconsistent system. There are no solutions.</span>
To solve this problem you must apply the proccedure shown below:
1. You have the following expression:
(3+3i)-(13+15i)
2. If you want to substract both terms, you need to substract the real numbers and the complex numbers. Then, you obtain:
3+3i-13-15i
(3-13)+(3i-15i)
3. Then, you obtain the following result:
-10-12i
4. Therefore, as you can see, the correct answer is the last option (option D), which is:
D. -10-12i
Answer:
1.) x = 4 2.) x = - 6
Step-by-step explanation:
1. 5x + 3 = 23
<em>Isolate the variable. Subtract 3 from both sides.</em>
5x = 20
<em>Divide both sides by 5.</em>
x = 4
____________
2. 42 = 18 - 4x
<em>Isolate the variable. Subtract 18 from both sides.</em>
24 = - 4x
<em>Divide both sides by -4.</em>
x = - 6
