10x + 4 = 3x + 9
Subtract 3x from each side of the equation:
7x + 4 = 9
Subtract 4 from each side:
7x = 5
Divide each side by 7:
x =5/7
you need 2 equations to solve for 2 variables
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
-4 plus 10 equals 6.
10 multiplied by 1.75 equals 17.5.
10 multiplied by 72 equals 720
There are 2 unknowns
you need 2 equations to solve for 2 variables
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
2.5
20 multiplied by 10 multiplied by 3 equals 600.
-4 plus 10 equals 6.
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
10 multiplied by 1.75 equals 17.5.
10 multiplied by 72 equals 720
400 multiplied by 10 is 4,000.
80 multiplied by 10 equals 800.
10 multiplied by 14 equals 140.