Answer:
Problem:
Solve x+y=7;x+2y=11
Steps:
I will try to solve your system of equations.
x+y=7;x+2y=11
Step: Solvex+y=7for x:
x+y+−y=7+−y(Add -y to both sides)
x=−y+7
Step: Substitute−y+7forxinx+2y=11:
x+2y=11
−y+7+2y=11
y+7=11(Simplify both sides of the equation)
y+7+−7=11+−7(Add -7 to both sides)
y=4
Step: Substitute4foryinx=−y+7:
x=−y+7
x=−4+7
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=4
Answer:
Answer is B.
Step-by-step explanation:
C is the middle line and A is on one side and B is on the other.
Hope it helps :)
Answer: x = 1/4
Step-by-step explanation:
-9x + 6 = -x + 4
+x +x
-8x + 6 = 4
-6 -6
-8x = -2
divide by -8 on both sides
x = 2/8
simplify
<em><u>x = 1/4</u></em>
Answer:
area = 24 units squared
Step-by-step explanation:
area = 1/2 (base 1 + base 2) x height
area = 1/2 (4 + 8) x 4
area = 1/2 (12) x 4
area = 6 x 4
area = 24
2x^2+10x-3x-15= 2x^2+7x-15