Answer:
34 in²
Step-by-step explanation:
Use the formula A = (a + b)(h/2)
Then plug in the numbers
A = (12+5)(4/2)
A = 17(2)
A = 34

Multiply both sides by 3

Simplify the numerators

Multiply both sides by 6

Simplify the numerator

Multiply both sides by x
12x - 18 = 15x Subtract 12x from both sides
-18 = 3x Divide both sides by 3
-6 = x Switch the sides to make it easier to read
x = -6
Check your answer by plugging -6 in for the x in the original problem:

Plug in -6 for x

Change

to

so all denominators are the same

Change

to

for easier work

Subtract the numerators (4 - (-1) )

=

So,
x = -6 .
Answer:
40
Step-by-step explanation:
i solved for you
hope it helped! ;)
Answer:
1230
Step-by-step explanation:
80 x 4 = 320
320 + 910 = 1230
Answer:
-12/35
Step-by-step explanation:
-3×4/5×7
-12/35