Answer:
2x+1
Step-by-step explanation:
3x-4-x+5 = 3x-x+5-4 = 2x+1
Answer:
the answers are
a) Area of triangle is 15 square inches
Perimeter of triangle is 18.5 inches.
b) Area of trapezium is 210 square cm.
Perimeter of trapezium is 61.5 cm.
c) Area of parallelogram is 21 square yards
perimeter of parallelogram is 22 yards
Step-by-step explanation:
Area of triangle is 1/2( base × height)
Area of trapezium is 1/2(p1 + p2)×height
Area of parallelogram is base × height
On the left side of the equation, we have 3x or 3 * x. But in algebra, we usually just do 3x.
We need to find a value for x that when multiplied by -3 equals to -216.
We can find the value for x by dividing both sides by the coefficient of 3x. Which is 3.
3x / 3 = -216 / 3
x = -72
So, x is equal to -72.
