Question

How would i write #30 and #34 into a equations

Answer 1

Answer:

Algebraic expressions

30. 3x - 4 = -19

34. 4(x - 7) = 12

Step-by-step explanation:

"difference" ----> subtraction

Let x be the number.

a. Part being subtracted is "three times a number" and "four" which results in -19.

》3x - 4 = -19

b. Part being subtracted is "a number" and "seven". Four times the result of the difference is 12.

》4(x - 7) = 12

The number can be solved for by isolating the variable (or making the variable the subject)