Algebra II Equations help! 10 Points!?

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Algebra II Equations help! 10 Points!?

Solve each queation or formula for the variale provide. Show work.

1. 3x - 4y = 7, for x

3x=4y-7

x=(4y-7)/3

2. 15y + 1 = x, for y

15y=x-1

y=(x-1)/15

3. ex - 2y = 3z, for x

ex=2y+3z

x=(2y+3x)/e

e cannot equal zero

4. 3/5y + a = b, for y

is the 3 over 5y or (3/5)y

if (3/5)y + a = b

3y +5a=5b

y=(5a+5b)/3

Not sure (I haven't done maths for years!) but about this:

1. 3x = 7 + 4y x = (7 + 4y) / 3

2. 15y = x - 1 y= (x-1) / 15

3. ex = 3z + 2y x = (3z + 2y) /e

4. 3/5y = b - a 3*5y / 5y = 5y / (b-a) 3 = 5y / (b-a) 3 (b-a) = 5y y = (3 (b-a)) / 5

All 3 problems require an analogous steps. a million. -5(-6 - x) = 6 + 3(8+2x) Distribute 30 + 5x = 6 + 24 + 6x combine like words 30 + 5x = 30 + 6x convey jointly variable words on the left 30 - 1x = 30 Subtract 30 from the two sides -1x = 0 Divide the two sides via -a million x = 0 2. -6(7 -x )=10(x+3) - 24 Distribute -40 two + 6x = 10x + 30 -24 Like words -40 two + 6x = 10x + 6 convey jointly variables -40 two - 4x = 6 upload 40 two -4x = 40 8 Divide via -4 x = -12 3. -3(-4x + 5) = 5(-3x + 7) + 10 12x - 15 = -15x + 35 + 10 12x - 15 = -15x + 40 5 27x - 15 = 40 5 27x = 60 x = 60/27 = 20/9