Answer: x = 4
y = - 3
Step-by-step explanation:
The given system of simultaneous equations is expressed as
x-3y = 13 ------------------------1
2x+4y=-4--------------------------2
We would apply the method of substitution in solving the equations. From equation 1, we would make x to stand alone by adding 3y to the left hand side and the right hand side of the equation. It becomes
x - 3y + 3y = 13 + 3y
x = 13 + 3y
Substituting x = 13 + 3y into equation 2, it becomes
2(13 + 3y) + 4y = - 4
26 + 6y + 4y = - 4
26 + 10y = - 4
Subtracting 26 from the left hand side and the right hand side of the equation, it becomes
26 - 26 + 10y = - 4 - 26
10y = - 30
Dividing the left hand side and the right hand side of the equation by 10, it becomes
10y/10 = - 30/10
y = - 3
Substituting y = - 3 into x = 13 + 3y, it becomes
x = 13 + 3 × - 3
x = 13 - 9
x = 4
Answer:
x=4.2
Step-by-step explanation:
7.8x = 32.76
/7.8 /7.8
x=4.2
Answer:
So
And
Step-by-step explanation:
Given;
ABCD is a parallelogram and opposite sides of this parallelogram are parallel that is 'AB' parallel with 'DC' and 'BC' parallel 'AD'
Now joint the point 'A' and 'C' and we get two different triangle 'ABC' and 'ADC',
Reason: Given then mention that Alternate Interior angles are equal for parallel lines.
Reason: Given then mention that Alternate Interior angles are equal for parallel lines.
Reason: Common side.
Then
∴
By using diagonal 'BD' we could flow similar argument to prove that and also
∴
1 yard = 36 inches
468 / 36 = 13 yards
An inch is small than a yard, so divide the number of inches by 36 to find the number of ..., 468 inches is equal to 13 yards
Answer=
y=-3+3
y=0
the sum of -3+3 is zero.