2018年6月22日 · x=0 Add 7 both sides: 9x-7=-7 9x-7+7=-7+7 9x=0 x=0/9 = 0 x=0 Check the answer: 9(0) - 7 = 0-7 = -7-----> Correct!

Question 590565: 9x-7=-7 Answer by jim_thompson5910(35256) (Show Source): You can put this solution on ...

How do you do a two step equation? 9x-7=-7-----1st step: Add 7 to both sides to get: 9x = 0

2017年8月11日 · x approx -0.86 or -8.14 x^2+9x =-7 x^2+9x+7=0 Algebraic Solution: This is a quadratic eqation of the form: ax^2+bx+c=0 The quadratic formula states: x=(-b+-sqrt(b^2-4ac))/(2a) Hence, x= (-9+-sqrt(9^2-4*1*7))/(2*1) =(-9+-sqrt(81-28))/2 = (-9+-sqrt(53))/2 approx (-9+-7.28)/2 approx -4.5+-3.64 Hence, x approx -0.86 or -8.14 Graphical Solution: To find the …

Solve the Equation 9x-7=9 - Answer | Math Problem Solver - Cymath ... \\"Get

2017年5月17日 · (2x+7)(x+1) 2x^2 +9x+7 We need to find factors of 2 and 7 whose products add to 9. As they are both prime numbers, there are only 2 options for the sum of their products.. either 9 or 15 We can realise that (2xx1) + (7xx1) will …

Question 246357: What is the slope of any line parallel to the line 9x + 4y = 7 ? since 4y=-9x+7 i think its -9/4 but iam not even sure how i got that im so lost please explain it to me thanks Answer by jim_thompson5910(35256) (Show Source):

Here's the secret to this. y=mx+b "m" is the slope of the line. So we need to put 9x + 4y = 7 in the y=mx+b form. 9x + 4y = 7 Subtract 9x from both sides to give us: 4y = -9x + 7 Now divide both sides by 4. y = -9/4(x) + 7/4 There we go. The slope of any line parallel is -9/4 RJ Toftness www.math-unlock.com

2016年11月5日 · The rational roots are x = +-1. Let a represent x^2, thus f(x)=2x^4-9x^2+7 can be rewritten as 2a^2 - 9a + 7. This is simply a matter of factoring now, remember, to find the zeroes, you must set the equation equal to zero: 2a^2 - 9a + 7 = 0 Using the quadratic formula: (Note that a was used rather than x, as a is the variable used in the quadratic equation, we are …

2) You also are given the second piece of information: F(x+5) = x^2 + 9x - 7. To get F(1), you need to take x = -4 in the last identity, and then you will get a + b + c = F(1) = F(-4 + 5) = (-4)^2 + 9*(-4) - 7 = 16 - 36 - 7 = -27.