The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
<h3>System of equation</h3>
System of equation are made of two or more equations with unknowns
Given the system of equation
4x=5-2y
y-2x=7
From equation 2:
y = 7 + 2x
The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
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Answer:
This is my answer is
Force=mass × acceleration.
120=mass × 2.
120=2m.
mass=60kg
Solve for x
2x+3y=9
2x=9-3y
2x/2 = 9-3y/2
X=9-3y/2
Solve for Y
2x+3y=9
3y=9-2x
3y/3 = 9-2x/3
Y=9-2x/3
Y=-2x/3 + 3
Answer:
54
Step-by-step explanation:
The given number to be increased = 36
The percentage by which the number is increased = 50%
In increasing a number by a percentage, we find the value of the percentage increase of the number and add to the number as follows;
50% of 36 + 36 = 50/100 × 36 + 36 = 54
Second method
The find the number obtained by increasing a number by a given percentage 'x', we add 100 to the give percentage and multiply the result by the number and hen divide the final result by 100 as follows;
36 increased by 50% = (100 + 50) × 36/100 = 54
