Answer:
x = all real numbers
Step-by-step explanation:
first you need to solve the first equation to figure out what y is.
4x - y = 2
<em>add y to both sides of the equation</em>
4x = 2 + y
s<em>ubtract 2 from both sides of the equation</em>
4x - 2 = y
now that you know what y is, you can substitute it in the next equation.
3y = 12x - 6
3(4x - 2) = 12x - 6
<em>open the parenthesis </em>
12x - 6 = 12x - 6
<em>subtract 12x from both sides of the equation</em>
-6 = -6
regardless of what x is, -6 will always equal -6.
so, the answer is all real numbers.
7. 3c+3=84
3c=81
c=27
So either 81/3 but if simplified its 27/1
8. The correct answer would be 55=31+t
Just divide those two number on how you usually do it but with a decimal this time.
Answer:
2036.81
Step-by-step explanation:
1500+477.29+237.52+550=2764.81
2764.81-728=2036.81
If that’s supposed to be x squared and y squared then it would be: -5^2 + -2^2=29
If it’s x and y multiplied by 2 then the answer would be (-5 x 2) + (-2 x 2) = -14.