I need to figure out the x in this equation. 7x - 10 = 25

Mathematics

2 answers:

OverLord2011 [107]2 years ago

5 0

Answer:

x=5

Step-by-step explanation:

7x-10=25

+10 +10

7x=35

divide by 7 both sides

bogdanovich [222]2 years ago

4 0

Answer:

x = 5

Step-by-step explanation:

7x -10 = 25, to isolate the term with x we will add 10 to both sides

7x -10+10 = 25 +10, combine like terms

7x = 35, divide both sides by 7

7x /7 = 35/7 , simplify the fractions

x = 5

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almond37 [142]

Answer:

$\large\boxed{C.\ y=2+x^4}$

Step-by-step explanation:

The slope-intercept form of an equation of linear function:

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<em>b</em> - y-intercept

============================

$A.\\\\9y+3=0\qquad\text{subtract 3 from both sides}\\\\9y=-3\qquad\text{divide both sides by 9}\\\\y=-\dfrac{3}{9}\\\\y=-\dfrac{1}{3}\to m=0,\ b=-\dfrac{1}{3}$

$B.\\\\y-4x=1\qquad\text{add}\ 4x\ \text{to both sides}\\\\y=4x+1\to m=4,\ b=1$

$C.\\\\y=2+x^4\qquad\text{nonlinear, because}\ x\ \text{is in fourth power}$

$D.\\\\x-2y=7\qquad\text{subtract}\ x\ \text{from both sides}\\\\-2y=-x+7\qquad\text{divide both sides by (-2)}\\\\y=\dfrac{1}{2}x-\dfrac{7}{2}\to m=\dfrac{1}{2},\ b=-\dfrac{7}{2}$