3x + 7 = 22
Subtract '7' from both sides
Hence
3x = 15
Divide both sides by '3'
x = 5
The answer !!!
If you mean: 3x-9 = 12 then the value of x is 7
well what does it equal to find out
If you mean: 3x -7 +4x = 28 then the value of x works out as 5
The answer is 3. :p
It is an equation and the value of x is 6
Where is y in the first equation, you put its equivalent (=) -3x + 11 The first equation is then transformed into: 3x + 2*(-3x + 11) = 7. Then you get: 3x + (-6x) + 2*11 = 7 <=> -3x + 22 = 7 <=> 22 - 7 = 3x <=> 3x = 15 <=> x = 15/3 <=> x = 5. Then you substitute the x in the second equation by its equivalent so, (x = 5) y = -3*x + 11 <=> y = -3*5 + 11 <=> y = -15 + 11 <=> y = -4. x = 5. y = -4.
It is an equation and the value of x is 7/19
3X + 5Y = 75Y = - 3X + 7Y = (-3/5)X + 7/5==================equation of the line
It is an equation: 3x+11=32 and the value of x is 7
In algebra, this would be how you figure out this equation:3x-7=12+7 +73x=19/3 /3x=19/3x= 6 1/3Therefore, the value of your variable ("x") is 6 and one third.
It can also be written as 3x + 7. The value of the expression will depend on the value of x.
With great difficulty because without an equality sign it is not an equation but some kind of an algebraic expression.