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You don't solve the expression. You simplify it!
x/4 - x/7
The LCD of the expression is 28. Multiply the top and the bottom of each fraction by its missing factor in the denominator. Then, combine the fractions and simplify to get:
x/4 * 7/7 - x/7 * 4/4
= (7x - 4x)/21
= 3x/21
= x/7
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How do you solve the equation for x -4 over 3x equals 1 over 7?
x = 7 7-4/3 x 7 = 1/7 3/21 = 1/7
Solve the proportion 2 over 7 equals x over 14?
2/7=x/14 28=7x 4=x
If I had x minus 3 over 4 and x plus 3 over 7 would x equal 11 over 2 or 37 over 11 or 14 or 28 over 11?
To solve for x, you will need to set the two expressions equal to each other: (x - 3)/4 = (x + 3)/7. Cross multiply to get 7(x - 3) = 4(x + 3). Expand and solve for x to get 7x - 21 = 4x + 12. Simplify to get 3x = 33, and then divide by 3 to find x = 11. So, x equals 11.
What is x-7 y4?
x-7*y*4 >> solve it * is multiply-
Solve 4 x 7 =?
28
Solve 7 equals x divided by 4?
1.75
How do you solve 7 x - 3 using metal math?
4
How do you solve x over 3 equals 4?
x=12
Solve the proportion 3 over 7 equals x over 63?
3/7=x/63 189=7x 27=x
Solve the proportion 2 over 7 equals x over 28?
2/7=x/28 56=7x 8=x
Solve the proportion 3 over 7 equals x over 56?
3/7=x/56 168=7x 24=x
How do you solve log base 3 of 7-log base3 of x equals 4?
log37 - log3x = 4 log3(7/x) = 4 7/x = 34 = 81 x = 7/81
