Mar 30, 2018 · x = 3 and y =-10 Rearrange the first equation to get: y = 11 - 7x Substitute this into the second equation: 3x + 2(11 - 7x) = -11 Expand the bracket: 3x + 22 - 14x = -11 22 - 11x = -11 33 = 11x x =3 Now substitute x = 3 into any of the three equations to find y: y = 11 - 7x => y = 11 - …

Jun 15, 2017 · See a solution process below: We can write this word problem as: (2x^2 - 11) - (7x - 9) First, remove all of the terms from parenthesis. Be careful to handle the signs of each individual term correctly: 2x^2 - 11 - 7x + 9 Next, group like terms: 2x^2 - 7x - 11 + 9 Now, combine like terms: 2x^2 - 7x + (-11 + 9) 2x^2 - 7x + (-2) 2x^2 - 7x - 2

Jul 24, 2015 · One way of doing this is to express #(x^2+7x+11)/(x+5)# into partial fractions.. Like this : #f(x)=(x^2+7x+11)/(x+5) color(red)= (x^2+7x +10-10+11)/(x+5) color(red ...

Aug 28, 2015 · color(red)((–7x–11)(19x–14) = -133x^2 - 111x + 154) "FOIL" stands for "F"irst, "O"uter, "I"nner, "L"ast. Your expression is (–7x–11)(19x–14). So you take each product in turn and then add them up. We multiply the "F"irst term in both parentheses together: -7x×19x = -133x^2 Then the "O"uter terms -7x×(-14) = 98x Then the "I"nner terms -11×19x= -209x And finally the "L"ast terms ...

Aug 31, 2017 · 12x + 9 7x + 11 - (- 5x + 2) First is to eliminate the brackets! 7x + 11 + 5x - 2 What is done above is the general terms with the symbols..

Nov 4, 2016 · The slope = -7 y= -7x +11 If you have the equation of a straight line given in this form, you immediately know both the slope and the y-intercept. y= mx +c is known as the 'slope-intercept form' m = the slope and c = the y-intercept, (0,c) The slope = -7

Feb 12, 2017 · x={-5,7} We know that a^0=1 so making x^2-2x-35=0 the solutions are x={-5,7} but we know also that a must be non null. Solving now x^2 - 7 x + 11 =0 we have x = 1/2 (7 pm sqrt[5]) ne {-5,7} Finally the equation is meaningful for x={-5,7}

May 24, 2018 · x=-7/4,y=31/8 writing your System in the form x+2y=6 7x+6y=11 multiplying the first equation by b-3 and ...

Jan 3, 2016 · How do you solve the following system: # 7x − 5y = −11, 7x - y = 10 #? Algebra Systems of Equations and Inequalities Systems Using Substitution 1 Answer

Mar 19, 2017 · {x<=-3" or "x>=1/7} "The expression of |10+7x| may be positive or negative" "if negative : " -(10+7x)>=11 -10-7x>=11 -7x>=11+10 -7x>=21 -x>=21/7 -x>=3 x<=-7 "if ...