You need three independent equations to solve for three unknown variables.
You can set this problem up like this: 48/4 = y/11 Cross multiply 48*11 = 4y 528 = 4y 528 divided by 4 = 132 So when w equals 11 y equals 132
w + 2x + 3w - 2xw = 2x + 4w - 2xw, in simplest form
To solve the system of equations: ( w + x + y + z = 2 ) ( 2w - x - y + 2z = 7 ) ( 2w + 3x + 2y - z = -2 ) ( 3w - 2x - y - 3z = -2 ) You can use methods such as substitution or elimination. Solving these equations yields the values of ( w, x, y, ) and ( z ). After performing the calculations, the solution is ( w = 2, x = 1, y = -1, z = 0 ).
If: 26.9+12+w = 49.25 then w = 10.35
4y + 5w
You can set this problem up like this: 48/4 = y/11 Cross multiply 48*11 = 4y 528 = 4y 528 divided by 4 = 132 So when w equals 11 y equals 132
w + 2x + 3w - 2xw = 2x + 4w - 2xw, in simplest form
It is the property that equals plus equals are equals.
To solve the system of equations: ( w + x + y + z = 2 ) ( 2w - x - y + 2z = 7 ) ( 2w + 3x + 2y - z = -2 ) ( 3w - 2x - y - 3z = -2 ) You can use methods such as substitution or elimination. Solving these equations yields the values of ( w, x, y, ) and ( z ). After performing the calculations, the solution is ( w = 2, x = 1, y = -1, z = 0 ).
If: 26.9+12+w = 49.25 then w = 10.35
The phrase "varies directly as" means that there is a number k such that w = k(2x - 1). From the results given for w = 9 when x = 2, 9 = k(4 - 1), or k = 3. Then when w is 15, 15 = 3(2x - 1), or 15 = 6x - 3, or 6x = 15 + 3, or x = 18/6 = 3.
4y + 5w
They are identities because they are true for ALL values of w and x.
w + 3 = 4w - 6 9 = 3w w = 3
120 - 76 = w+w. So: 2w = 44. So: w=22.
Well, darling, if W plus 65 equals 1000, then W must be 935. It's simple math, honey. Just subtract 65 from 1000 and you've got your answer.
-4