If you mean: 4x-14x+7 then the expression can be simplified to 7-10x
If you mean 49+6 = 4x-7 then the value of x is 15.5
4x + 3, where x = 7 4(7) + 3 = 28 + 3 = 31
4.00
Let the unknown number be x: 4x-7 = 13 Moving -7 to the other side of the equation changes it to +7: 4x = 13+7 4x = 20 Divide both sides of the equation by 4 to find the value of x: x = 5
what is the product of ( 4x-7) (4x+7)
this is what you would: 4x+6=3x-1 -6 -6 ---- 4x=3x-7 -3x -3x ---- 1x=-7 ---- x=-7
If you mean: 3x -7 +4x = 28 then the value of x works out as 5
First arrange this simultaneous equation in the form of: 4x+5y = 33 4x-2y = -2 Subtract the bottom equation from the top equation remembering that a - - is equal to a +: 7y = 35 Divide both sides by 7 to find the value of y: y = 5 Substitute the value of y into the original equations to find the value of x: So: x = 2 and y = 5
27
3x = 7 - 4x 3x + 4x = 7 - 4x + 4x 7x = 7 7x/7 = 7/7 x = 1
If: 4x-6 = 54 then the value of x works out as 15