In need to know how to solve these can't really understand how

in examples like question 4, just combine the fractions on the side with more than one fractions into one whole single fraction first.

(2k + 5) / 5 = (3k + 1) / 2 + (-k +7) / 2

(2k + 5) / 5 = (3k + 1 - k + 7) / 2

(2k + 5) / 5 = (2k + 8) / 2

then, cross-multiply both sides.

10k + 40 = 4k + 10

6k = 30

k = 5

[basically put like terms together and make them into a single fraction. if separated by an equal sign, cross multiply and simplify the equation.]

21

step-by-step explanation:

i need points

step-by-step explanation:

sorry bubs