How add integres with differents sings

(-) + (-) = (-)

(-) - (-) = solve the equation like (-) + (+)

(+) + (+) = (+)

(+) - (+) = (+) or (-)

(+) + (-) = solve the equation like (+) - (+)

(+) - (-) = solve the equation like (+) + (+)

(-) + (+) = (+) or (-)

i think i covered them but tell me if i missed sum.

answer: 590

step-by-step explanation:

14

step-by-step explanation:

14 x 3 = 42