Question

Solve the equation -2x = -3x + 14
Evaluate the expression x² - 3y + 12 for x and y = 5

Answer 1

#1

`\\ \sf\Rrightarrow -2x=-3x+14`

`\\ \sf\Rrightarrow -2x+3x=14`

`\\ \sf\Rrightarrow x=14`

#2

`\\ \sf\Rrightarrow x^2-3y+12`

`\\ \sf\Rrightarrow 5^2-3(5)+12`

`\\ \sf\Rrightarrow 25-15+12`

`\\ \sf\Rrightarrow 10+12`

`\\ \sf\Rrightarrow 22`