Math help please
posted by Charlotte .
1. Solve for x.
4(x  b) = x
b = 4/3x
b = 3/4x
x = 4/3b
x = 3/4b
2. Solve for y, then find the value of y when given x = 2.
6x = 7  4y
12
7/4
19/4
24
I need help solving these. Can you please explain how to solve these problems?
Respond to this Question
Similar Questions

algebra
use substitution to solve the linear system 3xy=15 x+2y=2 Solve for y in one formula, and then substitute that value for y in the other formula to solve for x. Once you find x, substitute that value into either formula to get the … 
algebra
use substitution to solve the linear system 3x+2y=5 4x3y=16 help plz!!! Solve for y in one formula, and then substitute that value for y in the other formula to solve for x. Once you find x, substitute that value into either formula … 
Math
Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x 4y =8 x=4, y=1 for 6x  2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value … 
Calculus  Seperable Equations
Solve the separable differential equation (dy/dx)=y(1+x) for y and find the exact value for y(.3). dy/dx = y(1+x) dy/y = (1+x)dx Integral (dy/y) = Integral (1+x)dx ln (y) = x + (1/2)x^2 + C y = e^(x + (1/2)x^2 + C) y(0.3) = e^(0.345 … 
MATH PLEASEEEEE
I have a question, if f(x)=x/2 and g(x)=3x+1 find: a) (f+g)(x) i know you go x/2+3x+1. but how do i solve that? 
math
could someone please help. given each set of data for ∆ABC: a) solve for b given ∠B=88 degrees,a=31.5m,c=25.6cm b) solve for a given ∠B=66 degrees,∠C=28 degrees,c=11.6cm i) state whether the sine law or cosine … 
math
Solve for y, then find the value of y when given x = –2. 6x = 7 – 4y 
algebra
Solve the formula for the variable given.Then use the given information to find the value of the variable. A=2πrw Find r if w=4ft And A=120ft square. Please someone help me with this!!! 
math
Could someone check these questions for me? 
math
1.solve for p 3(p+q)=p A.q=2/3p B.q=3/2p C.p=2/3q D.p=3/2q 2. solve for b then find the value of b when a=3 4a=2b7 A.9/2 B.5/2 C.19/2 D.17 3. solve for r d=rt A.r=dt B.r=t/d C.d/t D.r=dt 4. find the width of a rectangle with …