So we need to plug in y into our equation so our new equation is:
4x - 2(x+1.75) = 4
first lets distribute the 2 by multiplying the values inside the parentheses by 2
4x - 2x + 3.5 = 4
4x - 2x = 2x
so now our equation is 2x + 3.5 = 4
we need to get x by itself on one side of the parentheses so lets move the 3.5 by subtracting by 3.5 on both sides
2x + 3.5 = 2x
4 - 3.5 = .5
new equation: 2x = .5
now to get rid of this 2 (being multiplied by x) we simply have to do the opposite - divide by 2 on each side
2x/2 = x
.5/2 = .25
so our x value is equal to .25!
if you have any questions about how i answered this question please let me know:)
Answer:

Step-by-step explanation:

Hope this helps ;) ❤❤❤
A - 3b = 4 . . . . (1)
a = b - 2 . . . . . (2)
Putting (2) into (1), we have
b - 2 - 3b = 4
-2b = 4 + 2 = 6
b = 6/-2 = -3
From (1), a = b - 2 = -3 - 2 = -5
Hence, solution = (-5, -3)
<span>✡
Answer: x=6.72 </span><span>✡
- - Solve:
</span><span><span>- - First step is to cross-multiply:
</span>- </span><span>

-

- - The next step is to divide both sides by the number </span><span>7.5
-

</span>
<span>- - x=6.72</span>
✡Hope this helps<span>✡</span>