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Q: How do you solve 5b plus 3 equals 10?

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-86

Add the equations: 4a + 4a - 5b + 5b = 7 + 17 ie 8a = 24 a = 3, so b = 1

(4, 3)

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

7b + 16 = 5b + 247b - 5b = 24 - 162b = 8b = 4

5b2 = 8b therefore 5b =8 therefore b = 1.6

5b = 21 + 4b 5b - 4b = 21 + 4b - 4b b = 21

b= -162

-5b - 6 = -11Add 6 to each side of the equation:-5b = -5Divide each side by -5 :b = 1

-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

It is: 7b+10 simplified

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