4x-7=5x-2 x=-5
x/3 + 7 = 5 x/3 = -2 x = -6
-2x^2 + 17x - 35 = 0 = (-2x + 7)(x - 5) x =7/2 or 5
143542make the variables X plus Y plus Zthe solution is X*Y,X*Z, then (X+Z)*Y flipped7*2=147*5=35(7+5)*2=24 flipped =421435425*3=155*2=10(5+2)*3=21...flipped =12151012
y = 2x-5 4x-y = 7 => y = 4x-7 2x-5 = 4x-7 2x-4x = 5-7 -2x = -2 x = 1 Therefore by substituting: x = 1 and y = -3
5-x equals 7 = -2
x = 2
4x-7=5x-2 x=-5
2+5 = 7
(x + 7)2 = 5 x + 7 = ±√5 x + 7 - 7 = -7 ± √5 x = -7 ± √5
12
The value of x is 7
x=2ab+7 x= 2(3)(5) +7 x=30+7 x=37
Yes. This is a logical deduction based on substitution. if x + y = 7 and y = 5 then the value of 5 can be substituted for y to get x + 5 = 7 which can then be solved to get x = 2, meaning the point (2, 5) is a solution to the line x + y = 7 as it is on that line.
2
x = -2
x = 5