Answer:
first thing, take 3 pairs of equations and in each pair, make any one variable's coefficient equal to the coefficient of the same variable in the other equation and subtract the equations.
you will get 3 different equations:
x+y = 1
- 4x - 21z = 72
-x + 3z = -10 (simplified)
now take the value of x and y from equation 2 and 3 in terms of z and substitute x and y with those values
y = (72 + 21z)/-4
x = 3z + 10
as x + y = 1
you will get z = -4 after sloving the equation
now you have the value of one of the variables..
now we will substitute z in the equations to get the other variables
x = 3z + 10
x = 3(-4) + 10
x = -12 + 10
x = -2
Now y:
72+21(-4)/-4
(72 - 84)/-4
-12/-4
y = 3
so,
z = -4
x = -3
y = 3
I assume that it's brainly enough
Answer: i^2 = -1
Step-by-step explanation:
You are given a line is standard form, so to transform it to the slope-intercept form, you simply have to solve it for y, and you will have y=mx+b.
2y-3x=10 add 3x to both sides
2y=3x+10 divide both sides by 2
y=1.5x+5, since y=mx+b, m=slope and b=y-intercept
slope=1.5 and the y-intercept is, technically the point, (0, 5)
Answer: $1.67
Let's make an equation for the problem. To find the price for each sushi roll, divide the price by the number of sushi rolls.
30.06 ÷ 18 = 1.67
One of the biggest differences is that the LCM will always be one and the GCM will be the highest factor that can be divided into all the factors.