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Ответы на вопросы:
1. Nimrah thinks of a number, n. Write; 2. Work out the value of each expression
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8 заданий
1. Nimrah thinks of a number, n. Write an expression for the number Nimrah gets each time when she: a) multiplies the numbe
2. Work out the value of each expression. a) 2a + 3 when a = 8; b) p − q when p = 13 and q = 7; c) b/3 − 5 when b = 27.
3. Loli lives with three friends. They share the gas bill equally between the four of them. a) Write a formula to work out
4. Simplify these expressions. a) n + n + n; b) 3c + 5c; c) 9x² − x²; d) 3xy + 5yz − 2xy + 3zy.
5. Expand the brackets. a) 3(x + 2); b) 6(3 − w); c) 4(3x + 2); d) 3(7 − 4y + 6w).
6. Solve each of these equations and check your answers. a) n + 3 = 8; b) m − 4 = 12; c) 3p = 24; d) 2h + 6 = 24.
7. Marcus and Zara have set some puzzles. Write an equation for each puzzle. Solve your equations to find the values of the
8. Write down the inequality shown on this number line.
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