1. simplify
2m+7-3+4m
2. gather like terms
(2m+4m)+7-3
3. simplify
6m+7-3
4. simplify
6m+4
answer is 6m+4

Do the multiplication both sides,

Arrange the terms to LHS according to their variables,

Factorise this polynomial

So what we notice here is when you're multiplying two numbers you're getting 0 as answer.
So one of them must be 0.
If (x-1) is 0
then x = 1
similarly,
x-6=0
then, x= 6.
So the possible values of x are 1 and 6.
Answer:
Step-by-step explanation:
Two similar triangles.
10/26 = y/13
y = 5
x² = 13² - y² = 144
x = 12
Answer: 93
Step-by-step explanation:
Exterior angle equal sum of two interior anAngeles