-15 + 12x = 5x + 7 -3x SOLVE FOR X

Mathematics

2 answers:

tino4ka555 [31]3 years ago

7 0

Answer:

$x = 2.2$

Step-by-step explanation:

$- 15 + 12x = 5x + 7 - 3x \\ + 12x - 5x + 3x = 15 + 7 \\ 10x = 22 \\ \frac{10x}{10} = \frac{22}{10} \\ x = 2.2$

Natali [406]3 years ago

6 0

Answer: $x=\frac{11}{5}$

Simplify both sides of the equation

$-15+12x=5x+7+-3x$

$12x-15=(5x+-3x)+(7)$ (Combine Like Terms)

$12x-15=2x+7$

Subtract 2x from both sides

$12x-15-2x=2x+7-2x\\10x-15=7$

Divide both sides by 10

$\frac{10x}{10} =\frac{22}{10}$

$x=\frac{11}{5}$

You might be interested in

Solve each equation. Check your solution. –3b + 7 = –15 + 2b

Gnoma [55]

Exact form: b= 22/5

Decimal form: b= 4.4

Mixed number form: b= 4 2/5

6 0

3 years ago

Read 2 more answers

Apply the distributive property to write an equivalent expression in factored form: 12s + 18r

Kryger [21]

The most simplified answer is the greatest factor being six. Divide both by six and six is on the outside of parentheses to be equivalent making the answer 6(2s+18r) or -6(-2s-18r) if you used negatives as I would jot down negative and positive

8 0

3 years ago

What is vertical line test is and how it is used?

laila [671]

Answer:

The vertical line test is a visual test used to determine whether or not a graph is a function. To perform this test, simply draw a straight vertical line multiple times on different parts of the graph.

If a vertical line intersects with the graph at one point, then it's a function.

If a vertical line intersects with the graph at multiple points, then it's not a function.

Examples: