After substituting, what is the first step when evaluating X+3X-4.2 when X = 5?

A. Multiply 3 by 5

B. Add 5 and 3

C. Subtract 4.2 from 5

D. Add 3 and 4.2.

Question

Mathematics

Vaughn

18 June, 19:26

After substituting, what is the first step when evaluating X+3X-4.2 when X = 5?

A. Multiply 3 by 5

B. Add 5 and 3

C. Subtract 4.2 from 5

D. Add 3 and 4.2.

+1

Answers (1)

Know the Answer?

Bernard Lara · Answer 1

After substitution, the first step when evaluating X + 3X - 4.2 when X=5, will be:

A. Multiply 3 by 5.

when X=5; X + 3X - 4.2 = 5 + 15 - 4.2

X + 3X - 4.2 = 15.8

Step-by-step explanation:

Because multiplication has priority in addition and subtraction.

After substituting, what is the first step when evaluating X+3X-4.2 when X = 5?A. Multiply 3 by 5B. Add 5 and 3C. Subtract 4.2 from 5D. Add 3 and 4.2.

After substituting, what is the first step when evaluating X+3X-4.2 when X = 5?

A. Multiply 3 by 5

B. Add 5 and 3

C. Subtract 4.2 from 5

D. Add 3 and 4.2.