Why is it mathematically acceptable to add 2 linear equations together'?

Simplify 3 (2x-2) - 12+x

A 1:35 scale model of a fishing hut is 17 cm tall, 18 cm wide, and 19.7 cm long. What are the dimensions of the actual ice fishing hut?

Suzanne purchased tiles for her patio that are 8" and 4". She measured her patio in metres and wants to convert the tile dimensions to SI units. What are the dimensions of tiles in centimetres

bob makes 24 oz of orange juice he pours equal amounts of juice into 5 cups the amount of juice in each cup will fall between which two amounts

What is 1/3 of 48 in numbers

Mikey worked 8 hours on Wednesday, 6 hours on Thursday, and 7 hours on Friday. His gross pay for all three days was $187.95 A. $8.95 B. $8.98 C. $28.13 D. 65.63

Ray cupple bought a basic car costing 26,500, with options costing 725.00. There is a 6% sales rax in his state and a combined 50.00 license and registration fee. What was ray's total cost

theater technician charges a $200 flat fee and 5% of all profits from ticket sales per show. If the technician made $400.00 on a show, how much total profit was there from ticket sales?

Line L1 has the equation 3x-30y=6 Express the equation of L1 in the slope-intercept form

In Mrs. Smith's enrichment class, 25% of the students are boys. There are 7 boys in the class. How many total students are in Mrs. Smith's enrichment class?