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How do you Solve this system of equations using the addition method 6a - 5b equals 9 2a plus 5b equals 23?
the answer
How do you solve b plus 4b equals -90?
-86
Solve this equation using addition method 4a subtract 5b equals 7 and 4a plus 5b equals 17?
Add the equations: 4a + 4a - 5b + 5b = 7 + 17 ie 8a = 24 a = 3, so b = 1
6a - 5b equals 9 2a plus 5b equals 23?
(4, 3)
4a - 5b equals 7 4a plus 5b equals 17?
4a - 5b = 74a +5b = 17From the first equation:4a = 7 + 5bsubstitute this value in the second equation:7 + 5b + 5b = 177 + 10b = 1710b = 10b = 1Now,solve for a :4a - 5(1) = 74a = 7 + 54a = 12a = 3
What is b if 7b plus 16 equals 5b plus 24?
7b + 16 = 5b + 247b - 5b = 24 - 162b = 8b = 4
How do you solve 5b squared equals 8b?
5b2 = 8b therefore 5b =8 therefore b = 1.6
What is 5b equals 21 plus 4b?
5b = 21 + 4b 5b - 4b = 21 + 4b - 4b b = 21
How do you solve similtaneously -5a plus b equals 2 and -a -5b equals 0?
-5a + b = 2 AND -a - 5b = 0 -5a + b = 2 b = 2 + 5a *using above -a - 5b = 0 -a - 5(2 + 5a) = 0 -a - 10 - 25a = 0 -26a = 10 a = 10/-26 *using 'a' value 5a + b = 2 5(10/-26) + b = 2 -25/13 -2 = -b b = 51/13 Therefore a = 10/-26 b = 51/13
How do you solve -5b-6 equals -11?
-5b - 6 = -11Add 6 to each side of the equation:-5b = -5Divide each side by -5 :b = 1
What is 27 equals b plus 5b?
b= -162
5b plus 2b plus 10?
It is: 7b+10 simplified
