Help me pls need it fast

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.