Depends on the question but you generally must use a variety of operations to isolate the variable by itself on one side of the equation
Z because y=Mx+b so whatever is before x is the answer in this case it’s z
If you would like to solve 2x + 5y = -13 and 3x - 4y = -8, you can do this using the following steps:
2x + 5y = -13 /*4
3x - 4y = -8 /*5
_______________
8x + 20y = -52
15x - 20y = -40
_______________
8x + 15x + 20y - 20y = -52 - 40
23x = -92
x = -92 / 23
x = -4
<span>3x - 4y = -8
</span>3 * (-4) - 4y = -8
-12 - 4y = -8
12 + 4y = 8
4y = 8 -12
4y = -4
y = -1
The correct result would be x = -4 and y = -1.
Answer:
x=10 is answer.
Step-by-step explanation:
2 (x-1/8)-3/5x=55/4
2x/1-1/4-3/5=55/4
40x/20-5/20-12x/20=55/4
28x-5/20=55/4
112x-20=1100
112x=1120
x=1120/112
x=10
