What should the first step be to solve these equations please explain your answer for each question! I’ll give

Cross Multiply

Step-by-step explanation:

Cross multiplication can help answer these questions.

a. 3x-4/8=x+2/3

step 1- multiply 8 and (x+2), and 3 and (3x-4)

8x+16=9x+12

step 2- Subtract 8x on both sides

16=x+12

step 3- subtract 12 on both sides

4=x, or x=4

b. 3(2-r)/4=3+r/6

step 1- open parentheses

3(2-r)=6-3r

6-3r/4=3+r/6

step 2- cross multiply (put them into a equation without fractions by cross multiplying)

(6-3r) · 6= (3+r) ·4

step 3- multiply

36-18r=12+4r

step 4- solve

add 18r on both sides

36=12+22r

subtract 12 from both sides

24=22r

divide by 22 on both sides

24/22 or 12/11=r

r=12/11

c. 4p+3/8=p+2/4

step 1- cross multiply

(4p+3) · 4= (p+2)·8

step 2- open the parentheses

16p+12=8p+16

step 3- solve

subtract 12 on both sides

16p=8p+4

subtract 8p on both sides

8p=4

divide by  8 on both sides

p=4/8, or p=1/2

d. 2(a-7)/15=a+4/6

step 1- open parentheses

2(a-7) = 2a-14

2a-14/15=a+4/6

step 2- cross multiply

(2a-14) · 6 = (a+4) · 15

step 3- open parentheses

12a-84=15a+60

step 4- solve

subtract 60 on both sides

12a-144=15a

(the answer is -144 because a negative minus a negative such as -80-60=-144.

subtract 12a on both sides

-144=3a

divide by 3 on both sides

-48=a, or a=-48

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !