Answer:
Option A) x = 3 and y = 5
Step-by-step explanation:
−7x + 3y = −6_____ first equation
−3x + 3y = 6_____ second equation
Since both equations have "y" that share the same coefficients (that is 3),we can solve this equation.
---First step is to subtract the equation 2 from 1
−7x + 3y = −6
−3x + 3y = 6
From the above equation, we have
-4x = -12
Divide both sides by -4
X = 3
--- Substitute x = 3 in equation 1
−7x + 3y = −6
-7(3) + 3y = -6
-21 + 3y = -6
3y = 21 - 6
3y = 15
Y = 5
X = 3 and y = 5( option a)
Answer:
8n
Step-by-step explanation:
8n is the factor of both 8 and n. in the following question. Factor ⇒ If a number, that use to divide another number and we get zero as a remainder, the number is called the factor of another number.
The area formula for a parallelogram is base*height=area. Make an equation. You know the area and the height, so plug that into the equation, and you get x*18=396. Solve for x by dividing 396 by 18 and you get 22. So, the base is 22cm.
Answer:
75
Step-by-step explanation:
a fifth of c is 15
75÷5=15
3^4 and 3^-6
multiply, add, subtract?
