Sep 10, 2016 · x=2 >5-7x= -9 -7x= -9-5 -7x= -14 x=(-14)/(-7) Algebra Linear Equations One-Step Equations and Inverse Operations. 1 Answer

Mar 15, 2016 · Answer: x=-7/2+-sqrt(85)/2 or x approx -8.11 or 1.11 To solve by completing the square, first add 9 to both sides x^2+7x=9 Then you have to manipulate the number in front of x, in this case 7. You divide it by two and square the result, giving you (7/2)^2=49/4 Add this to both sides of the above equation, giving x^2+7x+(7/2)^2=9+(7/2)^2 This creates a perfect square …

Sep 10, 2015 · So the answered is x = 2 and y = -3 In order to solve x + 3y = -7 and -x + 2y = -8, you must use the elimination method for solving linear equations. In this case, you will have to find y and x. We will have to line them up like this x + 3y = -7 As you can see, the easiest one to solve for is y + ( -x + 2y = -8) because you could cancel the x _________ 5y = -15 y = -3 Now you …

Jan 13, 2017 · The slope is color(red)(-7) We can obtain the slope directly from this equation which is already in slope-intercept form.

Sep 24, 2015 · How do you simplify first and then solve #−(1 + 7x) − 6(−7 − x) = 36#?

Sep 17, 2016 · x = - 1 We have: 3 x - 7 = x - 9 Let's collect the terms containing x on the left-hand side of the equation: => 3 x - x = - 9 + 7 => 2 x = - 2 Let's divide both sides by 2: => x = - 1

Jul 13, 2018 · Slope -7 intercept (0,-9) With the general equation y=mx+c m is the slope and c is the y intercept y=-7x-9 => m=-7 => c=-9

Mar 31, 2017 · Factor the trinomial into two binomials ( -2x + 9) * ( x + 1 ) The 7x shows that the positive factors must be greater than the negative factors. -2 can be factored into -1 xx 2, or -2 xx 1 +9 can be factored into 3 xx 3 or 9 xx 1 The combination that works is + 1 xx 9 and …

Jul 2, 2016 · How do you find the vertex, x-intercept, y-intercept, and graph the equation #y=-4x^2+20x-24

May 28, 2017 · Express the inequality as an equation, then test points to determine where to shade the graph. Strategy: Express the inequality as an equation (i.e., with an equals sign). Graph the equation. Strict inequality lines are drawn as a dashed line. Shade the side of the line where the inequality is true. Step 1. Express the inequality as an equation. x-3=7 x=10 Step 2. Graph …