Answer:
3x - y = -7
Step-by-step explanation:
put into slope-intercept form the equation becomes <em>y = 3x + 7</em>
parallel lines have the same slope, in this case the slope is 3
Addition Property of Equality
Step-by-step explanation:
The equations are given as;
2x+2y=14----(i)
y-x=5 ?-------apply addition property of equality
y-x+x=5+x
y=5+x -------use this expression in equation (i)
2x +2(5+x)=14 ----------open brackets on the left side
2x+10+2x=14 -------collect like terms
4x+10=14
4x=14-10
4x=4
4x/4=4/4
x=1
y-1=5
y=6
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Addition property of Equality :brainly.com/question/3474035
Keywords: proof,shows, equivalent,system of equations
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Answer:
See the equation simplified below.
Step-by-step explanation:
The equation simplifies to the following equations:
4[x + 2(3x - 7)] = 22x - 65
4[x+6x-14] = 22x - 65
4x+24x - 56 = 22x - 65
28x - 56 = 22x - 65
6x - 56 = -65
6x = -9
x = -3/2
45/144 we simplify with 3
15/48 again with 3
5/16
we cam't simplify anymore, because 5 is a prime number. so that's the simplest form
S = 2*(6.72*12.7 + 5.78*(6.72 +12.7))
.. = 2*(85.344 +5.78*19.42)
.. = 2*197.5916)
.. = 395.1832
The surface area is about 395.2 cm^2.