Answer:

Step-by-step explanation:
Simplify to:

Multiply both sides by 7
2(x-2)=28x
Divide both sides by 2
x-2=14x
Subtract x from both sides
2=14x-x
Simplify 14x-x to 13x
2=13x
Divide both sides by 13

Answer:

Answer:
1. 21
2. -4
3. 20
4. 1
5. 4
6. -6
Step-by-step explanation:
Answer:
Step-by-step explanation:
Area of rectangle = length * width
= (x + 4) (5x)
= x *5x + 4 *5x
= 5x² + 20x
Perimeter of rectangle = 2*(length + width)
= 2*(x + 4 + 5x)
= 2*(6x + 4)
= 2*6x + 2 *4
= 12x + 8
Answer:
B. 6x^{2}+6y^{2}=144
Step-by-step explanation: